The Wildcats led by 12 points with five minutes remaining in the first half, but Georgia Tech threatened to charge back. Sophomore guard Jason Morris, who finished with 21 points off the bench, scored seven unanswered points, bringing the Yellow Jackets within three.
However, NU freshman guard David Sobolewski answered with a driving layup with six seconds in the half, which would spark momentum in Northwestern's favor for the second half.
The Wildcats started the second half just as they did after the opening tipoff, as John Shurna took control. Shurna started the half with eight points in the opening three minutes, helped Northwestern extend its lead. While NU kept scoring, the Yellow Jackets scuffled on offense, scoring just 10 points in a 13-minute span.
Northwestern finished the game shooting 55.4 percent as a team, and 35.4 percent from beyond the arc, compared to Georgia Tech's meager 42.6 percent from the field.
With the win, Northwestern becomes the first Big Ten school to win four consecutive games in the Big Ten-ACC Challenge.
The Wildcats returns to action on Friday, when they host Mississippi Valley State at Welsh-Ryan Arena. After that, NU faces its toughest challenge of the season, when No. 7 Baylor comes to Evanston on Sunday.