Home / 83,581.44-125,372.96-21,251.92

Finding the Fourth Proportional to 83,581.44, 125,372.96 and 21,251.92

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Solution

The fourth proportional to 83,581.44, 125,372.96 and 21,251.92 is: 31,878.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,581.44 : 125,372.96 = 21,251.92 : x
  2. Step 2: Convert to fraction form
    83,581.44/125,372.96 = 21,251.92/x
  3. Step 3: Cross multiply
    83,581.44x = 125,372.96 × 21,251.92
  4. Step 4: Simplify right side
    83,581.44x = 2,664,416,116.08
  5. Step 5: Solve for x
    x = 2,664,416,116.08/83,581.44
  6. Step 6: Final answer
    x = 31,878.08

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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.