Home / 80,605.28-120,723.51-38,514.94

Finding the Fourth Proportional to 80,605.28, 120,723.51 and 38,514.94

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Solution

The fourth proportional to 80,605.28, 120,723.51 and 38,514.94 is: 57,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,605.28 : 120,723.51 = 38,514.94 : x
  2. Step 2: Convert to fraction form
    80,605.28/120,723.51 = 38,514.94/x
  3. Step 3: Cross multiply
    80,605.28x = 120,723.51 × 38,514.94
  4. Step 4: Simplify right side
    80,605.28x = 4,649,659,265.93
  5. Step 5: Solve for x
    x = 4,649,659,265.93/80,605.28
  6. Step 6: Final answer
    x = 57,684.30

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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.