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Finding the Fourth Proportional to 77,372.52, 106,766.04 and 45,539.52

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Solution

The fourth proportional to 77,372.52, 106,766.04 and 45,539.52 is: 62,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,372.52 : 106,766.04 = 45,539.52 : x
  2. Step 2: Convert to fraction form
    77,372.52/106,766.04 = 45,539.52/x
  3. Step 3: Cross multiply
    77,372.52x = 106,766.04 × 45,539.52
  4. Step 4: Simplify right side
    77,372.52x = 4,862,074,213.90
  5. Step 5: Solve for x
    x = 4,862,074,213.90/77,372.52
  6. Step 6: Final answer
    x = 62,839.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.