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Finding the Fourth Proportional to 47,687.54, 71,555.90 and 19,628.33

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Solution

The fourth proportional to 47,687.54, 71,555.90 and 19,628.33 is: 29,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,687.54 : 71,555.90 = 19,628.33 : x
  2. Step 2: Convert to fraction form
    47,687.54/71,555.90 = 19,628.33/x
  3. Step 3: Cross multiply
    47,687.54x = 71,555.90 × 19,628.33
  4. Step 4: Simplify right side
    47,687.54x = 1,404,522,362.73
  5. Step 5: Solve for x
    x = 1,404,522,362.73/47,687.54
  6. Step 6: Final answer
    x = 29,452.61

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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.