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Finding the Fourth Proportional to 81,503.72, 112,468.60 and 45,688.86

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Solution

The fourth proportional to 81,503.72, 112,468.60 and 45,688.86 is: 63,046.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,503.72 : 112,468.60 = 45,688.86 : x
  2. Step 2: Convert to fraction form
    81,503.72/112,468.60 = 45,688.86/x
  3. Step 3: Cross multiply
    81,503.72x = 112,468.60 × 45,688.86
  4. Step 4: Simplify right side
    81,503.72x = 5,138,562,176.91
  5. Step 5: Solve for x
    x = 5,138,562,176.91/81,503.72
  6. Step 6: Final answer
    x = 63,046.97

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