Home / 83,842.20-125,763.26-21,512.70

Finding the Fourth Proportional to 83,842.20, 125,763.26 and 21,512.70

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Solution

The fourth proportional to 83,842.20, 125,763.26 and 21,512.70 is: 32,269.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,842.20 : 125,763.26 = 21,512.70 : x
  2. Step 2: Convert to fraction form
    83,842.20/125,763.26 = 21,512.70/x
  3. Step 3: Cross multiply
    83,842.20x = 125,763.26 × 21,512.70
  4. Step 4: Simplify right side
    83,842.20x = 2,705,507,175.84
  5. Step 5: Solve for x
    x = 2,705,507,175.84/83,842.20
  6. Step 6: Final answer
    x = 32,269.04

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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.