Home / 71,932.88-107,899.32-30,380.24

Finding the Fourth Proportional to 71,932.88, 107,899.32 and 30,380.24

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Solution

The fourth proportional to 71,932.88, 107,899.32 and 30,380.24 is: 45,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,932.88 : 107,899.32 = 30,380.24 : x
  2. Step 2: Convert to fraction form
    71,932.88/107,899.32 = 30,380.24/x
  3. Step 3: Cross multiply
    71,932.88x = 107,899.32 × 30,380.24
  4. Step 4: Simplify right side
    71,932.88x = 3,278,007,237.44
  5. Step 5: Solve for x
    x = 3,278,007,237.44/71,932.88
  6. Step 6: Final answer
    x = 45,570.36

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Similar ratio
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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.