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Finding the Fourth Proportional to 87,797.84, 131,655.69 and 31,630.56

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Solution

The fourth proportional to 87,797.84, 131,655.69 and 31,630.56 is: 47,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,797.84 : 131,655.69 = 31,630.56 : x
  2. Step 2: Convert to fraction form
    87,797.84/131,655.69 = 31,630.56/x
  3. Step 3: Cross multiply
    87,797.84x = 131,655.69 × 31,630.56
  4. Step 4: Simplify right side
    87,797.84x = 4,164,342,636.95
  5. Step 5: Solve for x
    x = 4,164,342,636.95/87,797.84
  6. Step 6: Final answer
    x = 47,431.04

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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.