Home / 80,605.24-120,723.48-38,514.91

Finding the Fourth Proportional to 80,605.24, 120,723.48 and 38,514.91

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Solution

The fourth proportional to 80,605.24, 120,723.48 and 38,514.91 is: 57,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,605.24 : 120,723.48 = 38,514.91 : x
  2. Step 2: Convert to fraction form
    80,605.24/120,723.48 = 38,514.91/x
  3. Step 3: Cross multiply
    80,605.24x = 120,723.48 × 38,514.91
  4. Step 4: Simplify right side
    80,605.24x = 4,649,653,170.89
  5. Step 5: Solve for x
    x = 4,649,653,170.89/80,605.24
  6. Step 6: Final answer
    x = 57,684.26

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1.5x scale

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.