Home / 80,360.08-120,560.16-56,713.76

Finding the Fourth Proportional to 80,360.08, 120,560.16 and 56,713.76

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Solution

The fourth proportional to 80,360.08, 120,560.16 and 56,713.76 is: 85,084.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,360.08 : 120,560.16 = 56,713.76 : x
  2. Step 2: Convert to fraction form
    80,360.08/120,560.16 = 56,713.76/x
  3. Step 3: Cross multiply
    80,360.08x = 120,560.16 × 56,713.76
  4. Step 4: Simplify right side
    80,360.08x = 6,837,419,979.80
  5. Step 5: Solve for x
    x = 6,837,419,979.80/80,360.08
  6. Step 6: Final answer
    x = 85,084.78

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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.