Home / 54,691.14-82,029.79-21,434.56

Finding the Fourth Proportional to 54,691.14, 82,029.79 and 21,434.56

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Solution

The fourth proportional to 54,691.14, 82,029.79 and 21,434.56 is: 32,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,691.14 : 82,029.79 = 21,434.56 : x
  2. Step 2: Convert to fraction form
    54,691.14/82,029.79 = 21,434.56/x
  3. Step 3: Cross multiply
    54,691.14x = 82,029.79 × 21,434.56
  4. Step 4: Simplify right side
    54,691.14x = 1,758,272,455.54
  5. Step 5: Solve for x
    x = 1,758,272,455.54/54,691.14
  6. Step 6: Final answer
    x = 32,149.13

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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.