Question The average of four numbers is 97. If three of the numbers are 87 91 and 99 what is the fourth number

Answer: 111 Step-by-step explanation: Given that the average is 97: Value 1 = 87 Value 2 = 91 Value 3 = 99 Value 4 = x Average= sum of all numbers/total number of values 97= 87 + 91 + 99 + x / 4 97= 277 + x/ 4 97 x 4 = 277 + x 388 = 277 + x 388 – 277 = x x = 111 Reply

Answer is 111

97 x 4 = 388

91 + 87 + 99 = 277

388 – 277 = 111

Answer:Step-by-step explanation: