Home / 83,829.60-125,744.44-21,500.12

Finding the Fourth Proportional to 83,829.60, 125,744.44 and 21,500.12

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Solution

The fourth proportional to 83,829.60, 125,744.44 and 21,500.12 is: 32,250.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,829.60 : 125,744.44 = 21,500.12 : x
  2. Step 2: Convert to fraction form
    83,829.60/125,744.44 = 21,500.12/x
  3. Step 3: Cross multiply
    83,829.60x = 125,744.44 × 21,500.12
  4. Step 4: Simplify right side
    83,829.60x = 2,703,520,549.33
  5. Step 5: Solve for x
    x = 2,703,520,549.33/83,829.60
  6. Step 6: Final answer
    x = 32,250.19

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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.