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Finding the Fourth Proportional to 71,951.68, 107,926.82 and 40,361.68

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Solution

The fourth proportional to 71,951.68, 107,926.82 and 40,361.68 is: 60,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,951.68 : 107,926.82 = 40,361.68 : x
  2. Step 2: Convert to fraction form
    71,951.68/107,926.82 = 40,361.68/x
  3. Step 3: Cross multiply
    71,951.68x = 107,926.82 × 40,361.68
  4. Step 4: Simplify right side
    71,951.68x = 4,356,107,772.26
  5. Step 5: Solve for x
    x = 4,356,107,772.26/71,951.68
  6. Step 6: Final answer
    x = 60,542.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.