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Finding the Fourth Proportional to 88,850.76, 133,161.32 and 66,488.70

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Solution

The fourth proportional to 88,850.76, 133,161.32 and 66,488.70 is: 99,647.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,850.76 : 133,161.32 = 66,488.70 : x
  2. Step 2: Convert to fraction form
    88,850.76/133,161.32 = 66,488.70/x
  3. Step 3: Cross multiply
    88,850.76x = 133,161.32 × 66,488.70
  4. Step 4: Simplify right side
    88,850.76x = 8,853,723,057.08
  5. Step 5: Solve for x
    x = 8,853,723,057.08/88,850.76
  6. Step 6: Final answer
    x = 99,647.13

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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.