Home / 80,505.08-120,806.76-50,882.12

Finding the Fourth Proportional to 80,505.08, 120,806.76 and 50,882.12

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Solution

The fourth proportional to 80,505.08, 120,806.76 and 50,882.12 is: 76,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,505.08 : 120,806.76 = 50,882.12 : x
  2. Step 2: Convert to fraction form
    80,505.08/120,806.76 = 50,882.12/x
  3. Step 3: Cross multiply
    80,505.08x = 120,806.76 × 50,882.12
  4. Step 4: Simplify right side
    80,505.08x = 6,146,904,059.13
  5. Step 5: Solve for x
    x = 6,146,904,059.13/80,505.08
  6. Step 6: Final answer
    x = 76,354.24

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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.