Home / 79,375.38-109,540.04-43,565.08

Finding the Fourth Proportional to 79,375.38, 109,540.04 and 43,565.08

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Solution

The fourth proportional to 79,375.38, 109,540.04 and 43,565.08 is: 60,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,375.38 : 109,540.04 = 43,565.08 : x
  2. Step 2: Convert to fraction form
    79,375.38/109,540.04 = 43,565.08/x
  3. Step 3: Cross multiply
    79,375.38x = 109,540.04 × 43,565.08
  4. Step 4: Simplify right side
    79,375.38x = 4,772,120,605.80
  5. Step 5: Solve for x
    x = 4,772,120,605.80/79,375.38
  6. Step 6: Final answer
    x = 60,120.92

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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.