Home / 80,950.20-121,425.30-25,546.20

Finding the Fourth Proportional to 80,950.20, 121,425.30 and 25,546.20

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Solution

The fourth proportional to 80,950.20, 121,425.30 and 25,546.20 is: 38,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,950.20 : 121,425.30 = 25,546.20 : x
  2. Step 2: Convert to fraction form
    80,950.20/121,425.30 = 25,546.20/x
  3. Step 3: Cross multiply
    80,950.20x = 121,425.30 × 25,546.20
  4. Step 4: Simplify right side
    80,950.20x = 3,101,954,998.86
  5. Step 5: Solve for x
    x = 3,101,954,998.86/80,950.20
  6. Step 6: Final answer
    x = 38,319.30

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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.