Home / 79,182.59-109,272.92-43,374.11

Finding the Fourth Proportional to 79,182.59, 109,272.92 and 43,374.11

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Solution

The fourth proportional to 79,182.59, 109,272.92 and 43,374.11 is: 59,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182.59 : 109,272.92 = 43,374.11 : x
  2. Step 2: Convert to fraction form
    79,182.59/109,272.92 = 43,374.11/x
  3. Step 3: Cross multiply
    79,182.59x = 109,272.92 × 43,374.11
  4. Step 4: Simplify right side
    79,182.59x = 4,739,614,888.87
  5. Step 5: Solve for x
    x = 4,739,614,888.87/79,182.59
  6. Step 6: Final answer
    x = 59,856.78

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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.