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Finding the Fourth Proportional to 80,797, 121,196.76 and 25,393

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Solution

The fourth proportional to 80,797, 121,196.76 and 25,393 is: 38,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,797 : 121,196.76 = 25,393 : x
  2. Step 2: Convert to fraction form
    80,797/121,196.76 = 25,393/x
  3. Step 3: Cross multiply
    80,797x = 121,196.76 × 25,393
  4. Step 4: Simplify right side
    80,797x = 3,077,549,326.68
  5. Step 5: Solve for x
    x = 3,077,549,326.68/80,797
  6. Step 6: Final answer
    x = 38,089.90

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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.