Home / 83,575.85-125,360.53-21,247.97

Finding the Fourth Proportional to 83,575.85, 125,360.53 and 21,247.97

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Solution

The fourth proportional to 83,575.85, 125,360.53 and 21,247.97 is: 31,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,575.85 : 125,360.53 = 21,247.97 : x
  2. Step 2: Convert to fraction form
    83,575.85/125,360.53 = 21,247.97/x
  3. Step 3: Cross multiply
    83,575.85x = 125,360.53 × 21,247.97
  4. Step 4: Simplify right side
    83,575.85x = 2,663,656,100.70
  5. Step 5: Solve for x
    x = 2,663,656,100.70/83,575.85
  6. Step 6: Final answer
    x = 31,871.12

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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.