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Finding the Fourth Proportional to 73,536.39, 110,304.72 and 20,945.79

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Solution

The fourth proportional to 73,536.39, 110,304.72 and 20,945.79 is: 31,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,536.39 : 110,304.72 = 20,945.79 : x
  2. Step 2: Convert to fraction form
    73,536.39/110,304.72 = 20,945.79/x
  3. Step 3: Cross multiply
    73,536.39x = 110,304.72 × 20,945.79
  4. Step 4: Simplify right side
    73,536.39x = 2,310,419,501.13
  5. Step 5: Solve for x
    x = 2,310,419,501.13/73,536.39
  6. Step 6: Final answer
    x = 31,418.72

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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.