Home / 80,181.72-120,271.28-27,591.66

Finding the Fourth Proportional to 80,181.72, 120,271.28 and 27,591.66

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Solution

The fourth proportional to 80,181.72, 120,271.28 and 27,591.66 is: 41,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,181.72 : 120,271.28 = 27,591.66 : x
  2. Step 2: Convert to fraction form
    80,181.72/120,271.28 = 27,591.66/x
  3. Step 3: Cross multiply
    80,181.72x = 120,271.28 × 27,591.66
  4. Step 4: Simplify right side
    80,181.72x = 3,318,484,265.52
  5. Step 5: Solve for x
    x = 3,318,484,265.52/80,181.72
  6. Step 6: Final answer
    x = 41,387.04

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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.