Home / 79,073.11-109,119.92-43,262.61

Finding the Fourth Proportional to 79,073.11, 109,119.92 and 43,262.61

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Solution

The fourth proportional to 79,073.11, 109,119.92 and 43,262.61 is: 59,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,073.11 : 109,119.92 = 43,262.61 : x
  2. Step 2: Convert to fraction form
    79,073.11/109,119.92 = 43,262.61/x
  3. Step 3: Cross multiply
    79,073.11x = 109,119.92 × 43,262.61
  4. Step 4: Simplify right side
    79,073.11x = 4,720,811,996.59
  5. Step 5: Solve for x
    x = 4,720,811,996.59/79,073.11
  6. Step 6: Final answer
    x = 59,701.86

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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.