Home / 54,540.98-81,691.56-45,073.70

Finding the Fourth Proportional to 54,540.98, 81,691.56 and 45,073.70

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Solution

The fourth proportional to 54,540.98, 81,691.56 and 45,073.70 is: 67,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,540.98 : 81,691.56 = 45,073.70 : x
  2. Step 2: Convert to fraction form
    54,540.98/81,691.56 = 45,073.70/x
  3. Step 3: Cross multiply
    54,540.98x = 81,691.56 × 45,073.70
  4. Step 4: Simplify right side
    54,540.98x = 3,682,140,867.97
  5. Step 5: Solve for x
    x = 3,682,140,867.97/54,540.98
  6. Step 6: Final answer
    x = 67,511.45

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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.