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Finding the Fourth Proportional to 85,163.88, 127,746.62 and 29,760.04

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Solution

The fourth proportional to 85,163.88, 127,746.62 and 29,760.04 is: 44,640.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,163.88 : 127,746.62 = 29,760.04 : x
  2. Step 2: Convert to fraction form
    85,163.88/127,746.62 = 29,760.04/x
  3. Step 3: Cross multiply
    85,163.88x = 127,746.62 × 29,760.04
  4. Step 4: Simplify right side
    85,163.88x = 3,801,744,521.06
  5. Step 5: Solve for x
    x = 3,801,744,521.06/85,163.88
  6. Step 6: Final answer
    x = 44,640.34

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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.