Home / 54,342.13-81,514.20-16,901.90

Finding the Fourth Proportional to 54,342.13, 81,514.20 and 16,901.90

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Solution

The fourth proportional to 54,342.13, 81,514.20 and 16,901.90 is: 25,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,342.13 : 81,514.20 = 16,901.90 : x
  2. Step 2: Convert to fraction form
    54,342.13/81,514.20 = 16,901.90/x
  3. Step 3: Cross multiply
    54,342.13x = 81,514.20 × 16,901.90
  4. Step 4: Simplify right side
    54,342.13x = 1,377,744,856.98
  5. Step 5: Solve for x
    x = 1,377,744,856.98/54,342.13
  6. Step 6: Final answer
    x = 25,353.16

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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.