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Finding the Fourth Proportional to 80,697, 121,064.94 and 25,293

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Solution

The fourth proportional to 80,697, 121,064.94 and 25,293 is: 37,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,697 : 121,064.94 = 25,293 : x
  2. Step 2: Convert to fraction form
    80,697/121,064.94 = 25,293/x
  3. Step 3: Cross multiply
    80,697x = 121,064.94 × 25,293
  4. Step 4: Simplify right side
    80,697x = 3,062,095,527.42
  5. Step 5: Solve for x
    x = 3,062,095,527.42/80,697
  6. Step 6: Final answer
    x = 37,945.59

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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.