Home / 79,067.20-109,109.28-43,257.91

Finding the Fourth Proportional to 79,067.20, 109,109.28 and 43,257.91

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Solution

The fourth proportional to 79,067.20, 109,109.28 and 43,257.91 is: 59,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,067.20 : 109,109.28 = 43,257.91 : x
  2. Step 2: Convert to fraction form
    79,067.20/109,109.28 = 43,257.91/x
  3. Step 3: Cross multiply
    79,067.20x = 109,109.28 × 43,257.91
  4. Step 4: Simplify right side
    79,067.20x = 4,719,839,414.40
  5. Step 5: Solve for x
    x = 4,719,839,414.40/79,067.20
  6. Step 6: Final answer
    x = 59,694.03

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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.