Home / 80,109.27-120,170.73-20,944.85

Finding the Fourth Proportional to 80,109.27, 120,170.73 and 20,944.85

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Solution

The fourth proportional to 80,109.27, 120,170.73 and 20,944.85 is: 31,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109.27 : 120,170.73 = 20,944.85 : x
  2. Step 2: Convert to fraction form
    80,109.27/120,170.73 = 20,944.85/x
  3. Step 3: Cross multiply
    80,109.27x = 120,170.73 × 20,944.85
  4. Step 4: Simplify right side
    80,109.27x = 2,516,957,313.39
  5. Step 5: Solve for x
    x = 2,516,957,313.39/80,109.27
  6. Step 6: Final answer
    x = 31,419.05

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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.