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Finding the Fourth Proportional to 71,177, 98,223.54 and 39,344.36

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Solution

The fourth proportional to 71,177, 98,223.54 and 39,344.36 is: 54,294.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,177 : 98,223.54 = 39,344.36 : x
  2. Step 2: Convert to fraction form
    71,177/98,223.54 = 39,344.36/x
  3. Step 3: Cross multiply
    71,177x = 98,223.54 × 39,344.36
  4. Step 4: Simplify right side
    71,177x = 3,864,542,318.23
  5. Step 5: Solve for x
    x = 3,864,542,318.23/71,177
  6. Step 6: Final answer
    x = 54,294.82

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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.