Home / 54,306.52-81,434.04-21,042.16

Finding the Fourth Proportional to 54,306.52, 81,434.04 and 21,042.16

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Solution

The fourth proportional to 54,306.52, 81,434.04 and 21,042.16 is: 31,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.52 : 81,434.04 = 21,042.16 : x
  2. Step 2: Convert to fraction form
    54,306.52/81,434.04 = 21,042.16/x
  3. Step 3: Cross multiply
    54,306.52x = 81,434.04 × 21,042.16
  4. Step 4: Simplify right side
    54,306.52x = 1,713,548,099.13
  5. Step 5: Solve for x
    x = 1,713,548,099.13/54,306.52
  6. Step 6: Final answer
    x = 31,553.27

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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.