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Finding the Fourth Proportional to 80,952.29, 111,801.29 and 61,625.89

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Solution

The fourth proportional to 80,952.29, 111,801.29 and 61,625.89 is: 85,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,952.29 : 111,801.29 = 61,625.89 : x
  2. Step 2: Convert to fraction form
    80,952.29/111,801.29 = 61,625.89/x
  3. Step 3: Cross multiply
    80,952.29x = 111,801.29 × 61,625.89
  4. Step 4: Simplify right side
    80,952.29x = 6,889,853,999.40
  5. Step 5: Solve for x
    x = 6,889,853,999.40/80,952.29
  6. Step 6: Final answer
    x = 85,110.06

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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.