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Finding the Fourth Proportional to 49,297.80, 73,956.30 and 21,217.80

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Solution

The fourth proportional to 49,297.80, 73,956.30 and 21,217.80 is: 31,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,297.80 : 73,956.30 = 21,217.80 : x
  2. Step 2: Convert to fraction form
    49,297.80/73,956.30 = 21,217.80/x
  3. Step 3: Cross multiply
    49,297.80x = 73,956.30 × 21,217.80
  4. Step 4: Simplify right side
    49,297.80x = 1,569,189,982.14
  5. Step 5: Solve for x
    x = 1,569,189,982.14/49,297.80
  6. Step 6: Final answer
    x = 31,830.83

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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.