Home / 81,170.39-121,755.18-22,005.97

Finding the Fourth Proportional to 81,170.39, 121,755.18 and 22,005.97

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Solution

The fourth proportional to 81,170.39, 121,755.18 and 22,005.97 is: 33,008.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,170.39 : 121,755.18 = 22,005.97 : x
  2. Step 2: Convert to fraction form
    81,170.39/121,755.18 = 22,005.97/x
  3. Step 3: Cross multiply
    81,170.39x = 121,755.18 × 22,005.97
  4. Step 4: Simplify right side
    81,170.39x = 2,679,340,229.65
  5. Step 5: Solve for x
    x = 2,679,340,229.65/81,170.39
  6. Step 6: Final answer
    x = 33,008.84

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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.