Home / 87,275.43-120,440.10-47,531.43

Finding the Fourth Proportional to 87,275.43, 120,440.10 and 47,531.43

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Solution

The fourth proportional to 87,275.43, 120,440.10 and 47,531.43 is: 65,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.43 : 120,440.10 = 47,531.43 : x
  2. Step 2: Convert to fraction form
    87,275.43/120,440.10 = 47,531.43/x
  3. Step 3: Cross multiply
    87,275.43x = 120,440.10 × 47,531.43
  4. Step 4: Simplify right side
    87,275.43x = 5,724,690,182.34
  5. Step 5: Solve for x
    x = 5,724,690,182.34/87,275.43
  6. Step 6: Final answer
    x = 65,593.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.