Home / 87,416.15-131,151.78-31,255.02

Finding the Fourth Proportional to 87,416.15, 131,151.78 and 31,255.02

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Solution

The fourth proportional to 87,416.15, 131,151.78 and 31,255.02 is: 46,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416.15 : 131,151.78 = 31,255.02 : x
  2. Step 2: Convert to fraction form
    87,416.15/131,151.78 = 31,255.02/x
  3. Step 3: Cross multiply
    87,416.15x = 131,151.78 × 31,255.02
  4. Step 4: Simplify right side
    87,416.15x = 4,099,151,506.94
  5. Step 5: Solve for x
    x = 4,099,151,506.94/87,416.15
  6. Step 6: Final answer
    x = 46,892.38

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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.