Home / 54,167.68-81,196.17-20,874.70

Finding the Fourth Proportional to 54,167.68, 81,196.17 and 20,874.70

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Solution

The fourth proportional to 54,167.68, 81,196.17 and 20,874.70 is: 31,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,167.68 : 81,196.17 = 20,874.70 : x
  2. Step 2: Convert to fraction form
    54,167.68/81,196.17 = 20,874.70/x
  3. Step 3: Cross multiply
    54,167.68x = 81,196.17 × 20,874.70
  4. Step 4: Simplify right side
    54,167.68x = 1,694,945,689.90
  5. Step 5: Solve for x
    x = 1,694,945,689.90/54,167.68
  6. Step 6: Final answer
    x = 31,290.72

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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.