Home / 54,520.77-81,781.20-17,081.15

Finding the Fourth Proportional to 54,520.77, 81,781.20 and 17,081.15

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Solution

The fourth proportional to 54,520.77, 81,781.20 and 17,081.15 is: 25,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.77 : 81,781.20 = 17,081.15 : x
  2. Step 2: Convert to fraction form
    54,520.77/81,781.20 = 17,081.15/x
  3. Step 3: Cross multiply
    54,520.77x = 81,781.20 × 17,081.15
  4. Step 4: Simplify right side
    54,520.77x = 1,396,916,944.38
  5. Step 5: Solve for x
    x = 1,396,916,944.38/54,520.77
  6. Step 6: Final answer
    x = 25,621.74

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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.