Home / 81,590.48-122,387.08-22,425.78

Finding the Fourth Proportional to 81,590.48, 122,387.08 and 22,425.78

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Solution

The fourth proportional to 81,590.48, 122,387.08 and 22,425.78 is: 33,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590.48 : 122,387.08 = 22,425.78 : x
  2. Step 2: Convert to fraction form
    81,590.48/122,387.08 = 22,425.78/x
  3. Step 3: Cross multiply
    81,590.48x = 122,387.08 × 22,425.78
  4. Step 4: Simplify right side
    81,590.48x = 2,744,625,730.92
  5. Step 5: Solve for x
    x = 2,744,625,730.92/81,590.48
  6. Step 6: Final answer
    x = 33,639.04

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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.