Home / 83,590.12-125,304.54-28,155.88

Finding the Fourth Proportional to 83,590.12, 125,304.54 and 28,155.88

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Solution

The fourth proportional to 83,590.12, 125,304.54 and 28,155.88 is: 42,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,590.12 : 125,304.54 = 28,155.88 : x
  2. Step 2: Convert to fraction form
    83,590.12/125,304.54 = 28,155.88/x
  3. Step 3: Cross multiply
    83,590.12x = 125,304.54 × 28,155.88
  4. Step 4: Simplify right side
    83,590.12x = 3,528,059,591.70
  5. Step 5: Solve for x
    x = 3,528,059,591.70/83,590.12
  6. Step 6: Final answer
    x = 42,206.66

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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.