Home / 83,624.20-125,582.10-80,999.80

Finding the Fourth Proportional to 83,624.20, 125,582.10 and 80,999.80

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Solution

The fourth proportional to 83,624.20, 125,582.10 and 80,999.80 is: 121,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,624.20 : 125,582.10 = 80,999.80 : x
  2. Step 2: Convert to fraction form
    83,624.20/125,582.10 = 80,999.80/x
  3. Step 3: Cross multiply
    83,624.20x = 125,582.10 × 80,999.80
  4. Step 4: Simplify right side
    83,624.20x = 10,172,124,983.58
  5. Step 5: Solve for x
    x = 10,172,124,983.58/83,624.20
  6. Step 6: Final answer
    x = 121,640.92

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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.