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Finding the Fourth Proportional to 88,711.92, 133,067.88 and 51,750

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Solution

The fourth proportional to 88,711.92, 133,067.88 and 51,750 is: 77,625

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,711.92 : 133,067.88 = 51,750 : x
  2. Step 2: Convert to fraction form
    88,711.92/133,067.88 = 51,750/x
  3. Step 3: Cross multiply
    88,711.92x = 133,067.88 × 51,750
  4. Step 4: Simplify right side
    88,711.92x = 6,886,262,790
  5. Step 5: Solve for x
    x = 6,886,262,790/88,711.92
  6. Step 6: Final answer
    x = 77,625

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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.