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Finding the Fourth Proportional to 87,292.62, 130,996.35 and 47,877.41

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Solution

The fourth proportional to 87,292.62, 130,996.35 and 47,877.41 is: 71,847.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,292.62 : 130,996.35 = 47,877.41 : x
  2. Step 2: Convert to fraction form
    87,292.62/130,996.35 = 47,877.41/x
  3. Step 3: Cross multiply
    87,292.62x = 130,996.35 × 47,877.41
  4. Step 4: Simplify right side
    87,292.62x = 6,271,766,284.94
  5. Step 5: Solve for x
    x = 6,271,766,284.94/87,292.62
  6. Step 6: Final answer
    x = 71,847.61

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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.