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Finding the Fourth Proportional to 55,179.87, 82,696.96 and 21,881.71

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Solution

The fourth proportional to 55,179.87, 82,696.96 and 21,881.71 is: 32,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,179.87 : 82,696.96 = 21,881.71 : x
  2. Step 2: Convert to fraction form
    55,179.87/82,696.96 = 21,881.71/x
  3. Step 3: Cross multiply
    55,179.87x = 82,696.96 × 21,881.71
  4. Step 4: Simplify right side
    55,179.87x = 1,809,550,896.60
  5. Step 5: Solve for x
    x = 1,809,550,896.60/55,179.87
  6. Step 6: Final answer
    x = 32,793.68

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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.