Home / 80,390.10-120,591.18-27,082.38

Finding the Fourth Proportional to 80,390.10, 120,591.18 and 27,082.38

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Solution

The fourth proportional to 80,390.10, 120,591.18 and 27,082.38 is: 40,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,390.10 : 120,591.18 = 27,082.38 : x
  2. Step 2: Convert to fraction form
    80,390.10/120,591.18 = 27,082.38/x
  3. Step 3: Cross multiply
    80,390.10x = 120,591.18 × 27,082.38
  4. Step 4: Simplify right side
    80,390.10x = 3,265,896,161.41
  5. Step 5: Solve for x
    x = 3,265,896,161.41/80,390.10
  6. Step 6: Final answer
    x = 40,625.60

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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.