Home / 80,587.45-120,839.46-36,175.96

Finding the Fourth Proportional to 80,587.45, 120,839.46 and 36,175.96

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Solution

The fourth proportional to 80,587.45, 120,839.46 and 36,175.96 is: 54,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,587.45 : 120,839.46 = 36,175.96 : x
  2. Step 2: Convert to fraction form
    80,587.45/120,839.46 = 36,175.96/x
  3. Step 3: Cross multiply
    80,587.45x = 120,839.46 × 36,175.96
  4. Step 4: Simplify right side
    80,587.45x = 4,371,483,471.38
  5. Step 5: Solve for x
    x = 4,371,483,471.38/80,587.45
  6. Step 6: Final answer
    x = 54,245.21

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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.