Home / 80,479.20-120,581.82-52,356.36

Finding the Fourth Proportional to 80,479.20, 120,581.82 and 52,356.36

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Solution

The fourth proportional to 80,479.20, 120,581.82 and 52,356.36 is: 78,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,479.20 : 120,581.82 = 52,356.36 : x
  2. Step 2: Convert to fraction form
    80,479.20/120,581.82 = 52,356.36/x
  3. Step 3: Cross multiply
    80,479.20x = 120,581.82 × 52,356.36
  4. Step 4: Simplify right side
    80,479.20x = 6,313,225,177.38
  5. Step 5: Solve for x
    x = 6,313,225,177.38/80,479.20
  6. Step 6: Final answer
    x = 78,445.43

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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.