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Finding the Fourth Proportional to 87,414.40, 131,024.40 and 47,999.80

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Solution

The fourth proportional to 87,414.40, 131,024.40 and 47,999.80 is: 71,946.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,414.40 : 131,024.40 = 47,999.80 : x
  2. Step 2: Convert to fraction form
    87,414.40/131,024.40 = 47,999.80/x
  3. Step 3: Cross multiply
    87,414.40x = 131,024.40 × 47,999.80
  4. Step 4: Simplify right side
    87,414.40x = 6,289,144,995.12
  5. Step 5: Solve for x
    x = 6,289,144,995.12/87,414.40
  6. Step 6: Final answer
    x = 71,946.33

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1.5x scale

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.