Home / 80,316.12-120,489.38-32,288.44

Finding the Fourth Proportional to 80,316.12, 120,489.38 and 32,288.44

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Solution

The fourth proportional to 80,316.12, 120,489.38 and 32,288.44 is: 48,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,316.12 : 120,489.38 = 32,288.44 : x
  2. Step 2: Convert to fraction form
    80,316.12/120,489.38 = 32,288.44/x
  3. Step 3: Cross multiply
    80,316.12x = 120,489.38 × 32,288.44
  4. Step 4: Simplify right side
    80,316.12x = 3,890,414,116.77
  5. Step 5: Solve for x
    x = 3,890,414,116.77/80,316.12
  6. Step 6: Final answer
    x = 48,438.77

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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.