Home / 80,992.20-111,769.07-45,180.08

Finding the Fourth Proportional to 80,992.20, 111,769.07 and 45,180.08

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Solution

The fourth proportional to 80,992.20, 111,769.07 and 45,180.08 is: 62,348.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,992.20 : 111,769.07 = 45,180.08 : x
  2. Step 2: Convert to fraction form
    80,992.20/111,769.07 = 45,180.08/x
  3. Step 3: Cross multiply
    80,992.20x = 111,769.07 × 45,180.08
  4. Step 4: Simplify right side
    80,992.20x = 5,049,734,739.38
  5. Step 5: Solve for x
    x = 5,049,734,739.38/80,992.20
  6. Step 6: Final answer
    x = 62,348.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.