Home / 80,359.01-120,515.28-27,045.12

Finding the Fourth Proportional to 80,359.01, 120,515.28 and 27,045.12

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Solution

The fourth proportional to 80,359.01, 120,515.28 and 27,045.12 is: 40,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,359.01 : 120,515.28 = 27,045.12 : x
  2. Step 2: Convert to fraction form
    80,359.01/120,515.28 = 27,045.12/x
  3. Step 3: Cross multiply
    80,359.01x = 120,515.28 × 27,045.12
  4. Step 4: Simplify right side
    80,359.01x = 3,259,350,209.43
  5. Step 5: Solve for x
    x = 3,259,350,209.43/80,359.01
  6. Step 6: Final answer
    x = 40,559.86

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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.