Home / 80,067.60-120,122.28-30,148.12

Finding the Fourth Proportional to 80,067.60, 120,122.28 and 30,148.12

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Solution

The fourth proportional to 80,067.60, 120,122.28 and 30,148.12 is: 45,230.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,067.60 : 120,122.28 = 30,148.12 : x
  2. Step 2: Convert to fraction form
    80,067.60/120,122.28 = 30,148.12/x
  3. Step 3: Cross multiply
    80,067.60x = 120,122.28 × 30,148.12
  4. Step 4: Simplify right side
    80,067.60x = 3,621,460,912.11
  5. Step 5: Solve for x
    x = 3,621,460,912.11/80,067.60
  6. Step 6: Final answer
    x = 45,230.04

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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.