Home / 79,869.70-110,255.61-51,589.18

Finding the Fourth Proportional to 79,869.70, 110,255.61 and 51,589.18

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Solution

The fourth proportional to 79,869.70, 110,255.61 and 51,589.18 is: 71,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,869.70 : 110,255.61 = 51,589.18 : x
  2. Step 2: Convert to fraction form
    79,869.70/110,255.61 = 51,589.18/x
  3. Step 3: Cross multiply
    79,869.70x = 110,255.61 × 51,589.18
  4. Step 4: Simplify right side
    79,869.70x = 5,687,996,510.30
  5. Step 5: Solve for x
    x = 5,687,996,510.30/79,869.70
  6. Step 6: Final answer
    x = 71,215.95

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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.