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Finding the Fourth Proportional to 35,687.92, 49,277.28 and 28,645.78

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Solution

The fourth proportional to 35,687.92, 49,277.28 and 28,645.78 is: 39,553.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,687.92 : 49,277.28 = 28,645.78 : x
  2. Step 2: Convert to fraction form
    35,687.92/49,277.28 = 28,645.78/x
  3. Step 3: Cross multiply
    35,687.92x = 49,277.28 × 28,645.78
  4. Step 4: Simplify right side
    35,687.92x = 1,411,586,121.88
  5. Step 5: Solve for x
    x = 1,411,586,121.88/35,687.92
  6. Step 6: Final answer
    x = 39,553.61

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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.