Ali had the third highest grade point average (GPA) of a group of five students. His GPA was 79, and it was 12 points lower than the highest GPA in the group and 8 points higher than the lowest GPA in the group. The fourth highest GPA was 3 points above the lowest. The second highest was 5 points below the highest. What was the fourth highest GPA in the group?
68
74
−5
86
thanks in advance