What number comes next in the series: 4, 19, 34, 49, 64, ?

💡 Solution & Explanation

Each term is 15 more than the one before it: 19 − 4 = 15, 34 − 19 = 15, 49 − 34 = 15, 64 − 49 = 15. So the next term is 64 + 15 = 79.