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Finding the Fourth Proportional to 71,214.92, 106,773.18 and 31,214.72

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Solution

The fourth proportional to 71,214.92, 106,773.18 and 31,214.72 is: 46,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,214.92 : 106,773.18 = 31,214.72 : x
  2. Step 2: Convert to fraction form
    71,214.92/106,773.18 = 31,214.72/x
  3. Step 3: Cross multiply
    71,214.92x = 106,773.18 × 31,214.72
  4. Step 4: Simplify right side
    71,214.92x = 3,332,894,917.21
  5. Step 5: Solve for x
    x = 3,332,894,917.21/71,214.92
  6. Step 6: Final answer
    x = 46,800.51

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