Home / 84,721.78-126,882.28-73,567.85

Finding the Fourth Proportional to 84,721.78, 126,882.28 and 73,567.85

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Solution

The fourth proportional to 84,721.78, 126,882.28 and 73,567.85 is: 110,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.78 : 126,882.28 = 73,567.85 : x
  2. Step 2: Convert to fraction form
    84,721.78/126,882.28 = 73,567.85/x
  3. Step 3: Cross multiply
    84,721.78x = 126,882.28 × 73,567.85
  4. Step 4: Simplify right side
    84,721.78x = 9,334,456,542.70
  5. Step 5: Solve for x
    x = 9,334,456,542.70/84,721.78
  6. Step 6: Final answer
    x = 110,177.77

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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.