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Finding the Fourth Proportional to 88,705.60, 133,029.60 and 29,531.20

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Solution

The fourth proportional to 88,705.60, 133,029.60 and 29,531.20 is: 44,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,705.60 : 133,029.60 = 29,531.20 : x
  2. Step 2: Convert to fraction form
    88,705.60/133,029.60 = 29,531.20/x
  3. Step 3: Cross multiply
    88,705.60x = 133,029.60 × 29,531.20
  4. Step 4: Simplify right side
    88,705.60x = 3,928,523,723.52
  5. Step 5: Solve for x
    x = 3,928,523,723.52/88,705.60
  6. Step 6: Final answer
    x = 44,287.21

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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.