Home / 80,514.20-120,723.30-49,371.80

Finding the Fourth Proportional to 80,514.20, 120,723.30 and 49,371.80

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Solution

The fourth proportional to 80,514.20, 120,723.30 and 49,371.80 is: 74,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,514.20 : 120,723.30 = 49,371.80 : x
  2. Step 2: Convert to fraction form
    80,514.20/120,723.30 = 49,371.80/x
  3. Step 3: Cross multiply
    80,514.20x = 120,723.30 × 49,371.80
  4. Step 4: Simplify right side
    80,514.20x = 5,960,326,622.94
  5. Step 5: Solve for x
    x = 5,960,326,622.94/80,514.20
  6. Step 6: Final answer
    x = 74,028.27

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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.