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Finding the Fourth Proportional to 71,785.53, 99,064.97 and 39,523.90

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Solution

The fourth proportional to 71,785.53, 99,064.97 and 39,523.90 is: 54,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,785.53 : 99,064.97 = 39,523.90 : x
  2. Step 2: Convert to fraction form
    71,785.53/99,064.97 = 39,523.90/x
  3. Step 3: Cross multiply
    71,785.53x = 99,064.97 × 39,523.90
  4. Step 4: Simplify right side
    71,785.53x = 3,915,433,967.78
  5. Step 5: Solve for x
    x = 3,915,433,967.78/71,785.53
  6. Step 6: Final answer
    x = 54,543.50

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