Home / 80,318.08-120,532.38-27,727.57

Finding the Fourth Proportional to 80,318.08, 120,532.38 and 27,727.57

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Solution

The fourth proportional to 80,318.08, 120,532.38 and 27,727.57 is: 41,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,318.08 : 120,532.38 = 27,727.57 : x
  2. Step 2: Convert to fraction form
    80,318.08/120,532.38 = 27,727.57/x
  3. Step 3: Cross multiply
    80,318.08x = 120,532.38 × 27,727.57
  4. Step 4: Simplify right side
    80,318.08x = 3,342,070,003.72
  5. Step 5: Solve for x
    x = 3,342,070,003.72/80,318.08
  6. Step 6: Final answer
    x = 41,610.43

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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.