Home / 87,416.40-131,092.20-31,234.80

Finding the Fourth Proportional to 87,416.40, 131,092.20 and 31,234.80

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Solution

The fourth proportional to 87,416.40, 131,092.20 and 31,234.80 is: 46,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416.40 : 131,092.20 = 31,234.80 : x
  2. Step 2: Convert to fraction form
    87,416.40/131,092.20 = 31,234.80/x
  3. Step 3: Cross multiply
    87,416.40x = 131,092.20 × 31,234.80
  4. Step 4: Simplify right side
    87,416.40x = 4,094,638,648.56
  5. Step 5: Solve for x
    x = 4,094,638,648.56/87,416.40
  6. Step 6: Final answer
    x = 46,840.62

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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.