Home / 54,515.10-81,729.45-29,891.10

Finding the Fourth Proportional to 54,515.10, 81,729.45 and 29,891.10

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Solution

The fourth proportional to 54,515.10, 81,729.45 and 29,891.10 is: 44,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,515.10 : 81,729.45 = 29,891.10 : x
  2. Step 2: Convert to fraction form
    54,515.10/81,729.45 = 29,891.10/x
  3. Step 3: Cross multiply
    54,515.10x = 81,729.45 × 29,891.10
  4. Step 4: Simplify right side
    54,515.10x = 2,442,983,162.90
  5. Step 5: Solve for x
    x = 2,442,983,162.90/54,515.10
  6. Step 6: Final answer
    x = 44,812.96

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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.