Home / 83,402.20-125,116.25-28,011.16

Finding the Fourth Proportional to 83,402.20, 125,116.25 and 28,011.16

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Solution

The fourth proportional to 83,402.20, 125,116.25 and 28,011.16 is: 42,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,402.20 : 125,116.25 = 28,011.16 : x
  2. Step 2: Convert to fraction form
    83,402.20/125,116.25 = 28,011.16/x
  3. Step 3: Cross multiply
    83,402.20x = 125,116.25 × 28,011.16
  4. Step 4: Simplify right side
    83,402.20x = 3,504,650,531.71
  5. Step 5: Solve for x
    x = 3,504,650,531.71/83,402.20
  6. Step 6: Final answer
    x = 42,021.08

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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.