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Finding the Fourth Proportional to 80,993.93, 121,481.24 and 21,834.23

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Solution

The fourth proportional to 80,993.93, 121,481.24 and 21,834.23 is: 32,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993.93 : 121,481.24 = 21,834.23 : x
  2. Step 2: Convert to fraction form
    80,993.93/121,481.24 = 21,834.23/x
  3. Step 3: Cross multiply
    80,993.93x = 121,481.24 × 21,834.23
  4. Step 4: Simplify right side
    80,993.93x = 2,652,448,618.27
  5. Step 5: Solve for x
    x = 2,652,448,618.27/80,993.93
  6. Step 6: Final answer
    x = 32,748.74

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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.