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Finding the Fourth Proportional to 73,395.85, 110,103.35 and 20,806.71

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Solution

The fourth proportional to 73,395.85, 110,103.35 and 20,806.71 is: 31,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,395.85 : 110,103.35 = 20,806.71 : x
  2. Step 2: Convert to fraction form
    73,395.85/110,103.35 = 20,806.71/x
  3. Step 3: Cross multiply
    73,395.85x = 110,103.35 × 20,806.71
  4. Step 4: Simplify right side
    73,395.85x = 2,290,888,473.48
  5. Step 5: Solve for x
    x = 2,290,888,473.48/73,395.85
  6. Step 6: Final answer
    x = 31,212.78

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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.