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Finding the Fourth Proportional to 71,821.59, 99,125.61 and 54,793.71

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Solution

The fourth proportional to 71,821.59, 99,125.61 and 54,793.71 is: 75,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,821.59 : 99,125.61 = 54,793.71 : x
  2. Step 2: Convert to fraction form
    71,821.59/99,125.61 = 54,793.71/x
  3. Step 3: Cross multiply
    71,821.59x = 99,125.61 × 54,793.71
  4. Step 4: Simplify right side
    71,821.59x = 5,431,459,927.91
  5. Step 5: Solve for x
    x = 5,431,459,927.91/71,821.59
  6. Step 6: Final answer
    x = 75,624.33

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