Home / 79,639.38-109,909.71-43,836.66

Finding the Fourth Proportional to 79,639.38, 109,909.71 and 43,836.66

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Solution

The fourth proportional to 79,639.38, 109,909.71 and 43,836.66 is: 60,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,639.38 : 109,909.71 = 43,836.66 : x
  2. Step 2: Convert to fraction form
    79,639.38/109,909.71 = 43,836.66/x
  3. Step 3: Cross multiply
    79,639.38x = 109,909.71 × 43,836.66
  4. Step 4: Simplify right side
    79,639.38x = 4,818,074,587.97
  5. Step 5: Solve for x
    x = 4,818,074,587.97/79,639.38
  6. Step 6: Final answer
    x = 60,498.65

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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.