Home / 80,396.28-120,591.99-30,484.08

Finding the Fourth Proportional to 80,396.28, 120,591.99 and 30,484.08

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Solution

The fourth proportional to 80,396.28, 120,591.99 and 30,484.08 is: 45,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,396.28 : 120,591.99 = 30,484.08 : x
  2. Step 2: Convert to fraction form
    80,396.28/120,591.99 = 30,484.08/x
  3. Step 3: Cross multiply
    80,396.28x = 120,591.99 × 30,484.08
  4. Step 4: Simplify right side
    80,396.28x = 3,676,135,870.52
  5. Step 5: Solve for x
    x = 3,676,135,870.52/80,396.28
  6. Step 6: Final answer
    x = 45,725.20

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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.