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Finding the Fourth Proportional to 69,838.97, 96,379.94 and 39,625.56

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Solution

The fourth proportional to 69,838.97, 96,379.94 and 39,625.56 is: 54,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,838.97 : 96,379.94 = 39,625.56 : x
  2. Step 2: Convert to fraction form
    69,838.97/96,379.94 = 39,625.56/x
  3. Step 3: Cross multiply
    69,838.97x = 96,379.94 × 39,625.56
  4. Step 4: Simplify right side
    69,838.97x = 3,819,109,194.33
  5. Step 5: Solve for x
    x = 3,819,109,194.33/69,838.97
  6. Step 6: Final answer
    x = 54,684.50

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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.