Home / 54,839.18-82,260.45-18,815.13

Finding the Fourth Proportional to 54,839.18, 82,260.45 and 18,815.13

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Solution

The fourth proportional to 54,839.18, 82,260.45 and 18,815.13 is: 28,223.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,839.18 : 82,260.45 = 18,815.13 : x
  2. Step 2: Convert to fraction form
    54,839.18/82,260.45 = 18,815.13/x
  3. Step 3: Cross multiply
    54,839.18x = 82,260.45 × 18,815.13
  4. Step 4: Simplify right side
    54,839.18x = 1,547,741,060.61
  5. Step 5: Solve for x
    x = 1,547,741,060.61/54,839.18
  6. Step 6: Final answer
    x = 28,223.27

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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.