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Finding the Fourth Proportional to 79,177.52, 118,754.76 and 29,918

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Solution

The fourth proportional to 79,177.52, 118,754.76 and 29,918 is: 44,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,177.52 : 118,754.76 = 29,918 : x
  2. Step 2: Convert to fraction form
    79,177.52/118,754.76 = 29,918/x
  3. Step 3: Cross multiply
    79,177.52x = 118,754.76 × 29,918
  4. Step 4: Simplify right side
    79,177.52x = 3,552,904,909.68
  5. Step 5: Solve for x
    x = 3,552,904,909.68/79,177.52
  6. Step 6: Final answer
    x = 44,872.65

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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.