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Finding the Fourth Proportional to 88,691.60, 133,080.60 and 67,624.40

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Solution

The fourth proportional to 88,691.60, 133,080.60 and 67,624.40 is: 101,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.60 : 133,080.60 = 67,624.40 : x
  2. Step 2: Convert to fraction form
    88,691.60/133,080.60 = 67,624.40/x
  3. Step 3: Cross multiply
    88,691.60x = 133,080.60 × 67,624.40
  4. Step 4: Simplify right side
    88,691.60x = 8,999,495,726.64
  5. Step 5: Solve for x
    x = 8,999,495,726.64/88,691.60
  6. Step 6: Final answer
    x = 101,469.54

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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.