Home / 80,574.28-120,819.92-36,162.96

Finding the Fourth Proportional to 80,574.28, 120,819.92 and 36,162.96

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Solution

The fourth proportional to 80,574.28, 120,819.92 and 36,162.96 is: 54,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,574.28 : 120,819.92 = 36,162.96 : x
  2. Step 2: Convert to fraction form
    80,574.28/120,819.92 = 36,162.96/x
  3. Step 3: Cross multiply
    80,574.28x = 120,819.92 × 36,162.96
  4. Step 4: Simplify right side
    80,574.28x = 4,369,205,934.16
  5. Step 5: Solve for x
    x = 4,369,205,934.16/80,574.28
  6. Step 6: Final answer
    x = 54,225.81

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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.