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Finding the Fourth Proportional to 69,640.97, 96,104.93 and 40,961.82

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Solution

The fourth proportional to 69,640.97, 96,104.93 and 40,961.82 is: 56,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,640.97 : 96,104.93 = 40,961.82 : x
  2. Step 2: Convert to fraction form
    69,640.97/96,104.93 = 40,961.82/x
  3. Step 3: Cross multiply
    69,640.97x = 96,104.93 × 40,961.82
  4. Step 4: Simplify right side
    69,640.97x = 3,936,632,638.96
  5. Step 5: Solve for x
    x = 3,936,632,638.96/69,640.97
  6. Step 6: Final answer
    x = 56,527.54

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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.