Home / 80,191.16-120,286.80-50,653.88

Finding the Fourth Proportional to 80,191.16, 120,286.80 and 50,653.88

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Solution

The fourth proportional to 80,191.16, 120,286.80 and 50,653.88 is: 75,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,191.16 : 120,286.80 = 50,653.88 : x
  2. Step 2: Convert to fraction form
    80,191.16/120,286.80 = 50,653.88/x
  3. Step 3: Cross multiply
    80,191.16x = 120,286.80 × 50,653.88
  4. Step 4: Simplify right side
    80,191.16x = 6,092,993,132.78
  5. Step 5: Solve for x
    x = 6,092,993,132.78/80,191.16
  6. Step 6: Final answer
    x = 75,980.86

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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.