Home / 54,218.56-81,335.68-16,781.76

Finding the Fourth Proportional to 54,218.56, 81,335.68 and 16,781.76

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Solution

The fourth proportional to 54,218.56, 81,335.68 and 16,781.76 is: 25,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.56 : 81,335.68 = 16,781.76 : x
  2. Step 2: Convert to fraction form
    54,218.56/81,335.68 = 16,781.76/x
  3. Step 3: Cross multiply
    54,218.56x = 81,335.68 × 16,781.76
  4. Step 4: Simplify right side
    54,218.56x = 1,364,955,861.20
  5. Step 5: Solve for x
    x = 1,364,955,861.20/54,218.56
  6. Step 6: Final answer
    x = 25,175.07

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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.