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Finding the Fourth Proportional to 49,896.60, 68,859.90 and 28,677.84

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Solution

The fourth proportional to 49,896.60, 68,859.90 and 28,677.84 is: 39,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,896.60 : 68,859.90 = 28,677.84 : x
  2. Step 2: Convert to fraction form
    49,896.60/68,859.90 = 28,677.84/x
  3. Step 3: Cross multiply
    49,896.60x = 68,859.90 × 28,677.84
  4. Step 4: Simplify right side
    49,896.60x = 1,974,753,194.62
  5. Step 5: Solve for x
    x = 1,974,753,194.62/49,896.60
  6. Step 6: Final answer
    x = 39,576.91

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1.5x scale

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.