Home / 79,540.24-109,764.12-43,729.96

Finding the Fourth Proportional to 79,540.24, 109,764.12 and 43,729.96

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Solution

The fourth proportional to 79,540.24, 109,764.12 and 43,729.96 is: 60,346.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,540.24 : 109,764.12 = 43,729.96 : x
  2. Step 2: Convert to fraction form
    79,540.24/109,764.12 = 43,729.96/x
  3. Step 3: Cross multiply
    79,540.24x = 109,764.12 × 43,729.96
  4. Step 4: Simplify right side
    79,540.24x = 4,799,980,577.04
  5. Step 5: Solve for x
    x = 4,799,980,577.04/79,540.24
  6. Step 6: Final answer
    x = 60,346.57

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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.