Home / 87,041.43-120,153.92-58,785.39

Finding the Fourth Proportional to 87,041.43, 120,153.92 and 58,785.39

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Solution

The fourth proportional to 87,041.43, 120,153.92 and 58,785.39 is: 81,148.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,041.43 : 120,153.92 = 58,785.39 : x
  2. Step 2: Convert to fraction form
    87,041.43/120,153.92 = 58,785.39/x
  3. Step 3: Cross multiply
    87,041.43x = 120,153.92 × 58,785.39
  4. Step 4: Simplify right side
    87,041.43x = 7,063,294,753.30
  5. Step 5: Solve for x
    x = 7,063,294,753.30/87,041.43
  6. Step 6: Final answer
    x = 81,148.65

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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.