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Finding the Fourth Proportional to 49,751.88, 74,627.36 and 20,162.68

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Solution

The fourth proportional to 49,751.88, 74,627.36 and 20,162.68 is: 30,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,751.88 : 74,627.36 = 20,162.68 : x
  2. Step 2: Convert to fraction form
    49,751.88/74,627.36 = 20,162.68/x
  3. Step 3: Cross multiply
    49,751.88x = 74,627.36 × 20,162.68
  4. Step 4: Simplify right side
    49,751.88x = 1,504,687,578.92
  5. Step 5: Solve for x
    x = 1,504,687,578.92/49,751.88
  6. Step 6: Final answer
    x = 30,243.83

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1.5x scale

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.