Home / 45,456.15-68,194.56-13,869.04

Finding the Fourth Proportional to 45,456.15, 68,194.56 and 13,869.04

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Solution

The fourth proportional to 45,456.15, 68,194.56 and 13,869.04 is: 20,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,456.15 : 68,194.56 = 13,869.04 : x
  2. Step 2: Convert to fraction form
    45,456.15/68,194.56 = 13,869.04/x
  3. Step 3: Cross multiply
    45,456.15x = 68,194.56 × 13,869.04
  4. Step 4: Simplify right side
    45,456.15x = 945,793,011.80
  5. Step 5: Solve for x
    x = 945,793,011.80/45,456.15
  6. Step 6: Final answer
    x = 20,806.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.