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Finding the Fourth Proportional to 93,215.28, 139,711.92 and 53,690.52

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Solution

The fourth proportional to 93,215.28, 139,711.92 and 53,690.52 is: 80,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,215.28 : 139,711.92 = 53,690.52 : x
  2. Step 2: Convert to fraction form
    93,215.28/139,711.92 = 53,690.52/x
  3. Step 3: Cross multiply
    93,215.28x = 139,711.92 × 53,690.52
  4. Step 4: Simplify right side
    93,215.28x = 7,501,205,635.00
  5. Step 5: Solve for x
    x = 7,501,205,635.00/93,215.28
  6. Step 6: Final answer
    x = 80,471.85

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