Home / 54,520.76-81,781.14-17,081.15

Finding the Fourth Proportional to 54,520.76, 81,781.14 and 17,081.15

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Solution

The fourth proportional to 54,520.76, 81,781.14 and 17,081.15 is: 25,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.76 : 81,781.14 = 17,081.15 : x
  2. Step 2: Convert to fraction form
    54,520.76/81,781.14 = 17,081.15/x
  3. Step 3: Cross multiply
    54,520.76x = 81,781.14 × 17,081.15
  4. Step 4: Simplify right side
    54,520.76x = 1,396,915,510.61
  5. Step 5: Solve for x
    x = 1,396,915,510.61/54,520.76
  6. Step 6: Final answer
    x = 25,621.72

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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.