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Finding the Fourth Proportional to 73,442, 110,162.73 and 20,851.49

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Solution

The fourth proportional to 73,442, 110,162.73 and 20,851.49 is: 31,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,442 : 110,162.73 = 20,851.49 : x
  2. Step 2: Convert to fraction form
    73,442/110,162.73 = 20,851.49/x
  3. Step 3: Cross multiply
    73,442x = 110,162.73 × 20,851.49
  4. Step 4: Simplify right side
    73,442x = 2,297,057,062.97
  5. Step 5: Solve for x
    x = 2,297,057,062.97/73,442
  6. Step 6: Final answer
    x = 31,277.16

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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.