Home / 79,394.28-109,615.38-49,211.70

Finding the Fourth Proportional to 79,394.28, 109,615.38 and 49,211.70

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Solution

The fourth proportional to 79,394.28, 109,615.38 and 49,211.70 is: 67,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,394.28 : 109,615.38 = 49,211.70 : x
  2. Step 2: Convert to fraction form
    79,394.28/109,615.38 = 49,211.70/x
  3. Step 3: Cross multiply
    79,394.28x = 109,615.38 × 49,211.70
  4. Step 4: Simplify right side
    79,394.28x = 5,394,359,195.95
  5. Step 5: Solve for x
    x = 5,394,359,195.95/79,394.28
  6. Step 6: Final answer
    x = 67,943.93

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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.