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Finding the Fourth Proportional to 85,078.62, 127,617.93 and 22,747.50

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Solution

The fourth proportional to 85,078.62, 127,617.93 and 22,747.50 is: 34,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.62 : 127,617.93 = 22,747.50 : x
  2. Step 2: Convert to fraction form
    85,078.62/127,617.93 = 22,747.50/x
  3. Step 3: Cross multiply
    85,078.62x = 127,617.93 × 22,747.50
  4. Step 4: Simplify right side
    85,078.62x = 2,902,988,862.68
  5. Step 5: Solve for x
    x = 2,902,988,862.68/85,078.62
  6. Step 6: Final answer
    x = 34,121.25

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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.