Home / 61,134.38-91,715.40-21,691.54

Finding the Fourth Proportional to 61,134.38, 91,715.40 and 21,691.54

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Solution

The fourth proportional to 61,134.38, 91,715.40 and 21,691.54 is: 32,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,134.38 : 91,715.40 = 21,691.54 : x
  2. Step 2: Convert to fraction form
    61,134.38/91,715.40 = 21,691.54/x
  3. Step 3: Cross multiply
    61,134.38x = 91,715.40 × 21,691.54
  4. Step 4: Simplify right side
    61,134.38x = 1,989,448,267.72
  5. Step 5: Solve for x
    x = 1,989,448,267.72/61,134.38
  6. Step 6: Final answer
    x = 32,542.22

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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.