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Finding the Fourth Proportional to 57,695.60, 86,616.30 and 31,062.80

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Solution

The fourth proportional to 57,695.60, 86,616.30 and 31,062.80 is: 46,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,695.60 : 86,616.30 = 31,062.80 : x
  2. Step 2: Convert to fraction form
    57,695.60/86,616.30 = 31,062.80/x
  3. Step 3: Cross multiply
    57,695.60x = 86,616.30 × 31,062.80
  4. Step 4: Simplify right side
    57,695.60x = 2,690,544,803.64
  5. Step 5: Solve for x
    x = 2,690,544,803.64/57,695.60
  6. Step 6: Final answer
    x = 46,633.45

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