Home / 87,931.59-131,909.70-28,755.48

Finding the Fourth Proportional to 87,931.59, 131,909.70 and 28,755.48

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Solution

The fourth proportional to 87,931.59, 131,909.70 and 28,755.48 is: 43,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,931.59 : 131,909.70 = 28,755.48 : x
  2. Step 2: Convert to fraction form
    87,931.59/131,909.70 = 28,755.48/x
  3. Step 3: Cross multiply
    87,931.59x = 131,909.70 × 28,755.48
  4. Step 4: Simplify right side
    87,931.59x = 3,793,126,740.16
  5. Step 5: Solve for x
    x = 3,793,126,740.16/87,931.59
  6. Step 6: Final answer
    x = 43,137.25

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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.