Home / 80,278.68-120,441.78-27,693.48

Finding the Fourth Proportional to 80,278.68, 120,441.78 and 27,693.48

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Solution

The fourth proportional to 80,278.68, 120,441.78 and 27,693.48 is: 41,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,278.68 : 120,441.78 = 27,693.48 : x
  2. Step 2: Convert to fraction form
    80,278.68/120,441.78 = 27,693.48/x
  3. Step 3: Cross multiply
    80,278.68x = 120,441.78 × 27,693.48
  4. Step 4: Simplify right side
    80,278.68x = 3,335,452,025.59
  5. Step 5: Solve for x
    x = 3,335,452,025.59/80,278.68
  6. Step 6: Final answer
    x = 41,548.42

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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.