Home / 80,015.20-110,452.08-71,617.12

Finding the Fourth Proportional to 80,015.20, 110,452.08 and 71,617.12

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Solution

The fourth proportional to 80,015.20, 110,452.08 and 71,617.12 is: 98,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,015.20 : 110,452.08 = 71,617.12 : x
  2. Step 2: Convert to fraction form
    80,015.20/110,452.08 = 71,617.12/x
  3. Step 3: Cross multiply
    80,015.20x = 110,452.08 × 71,617.12
  4. Step 4: Simplify right side
    80,015.20x = 7,910,259,867.61
  5. Step 5: Solve for x
    x = 7,910,259,867.61/80,015.20
  6. Step 6: Final answer
    x = 98,859.47

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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.