Home / 87,416.50-131,147.79-31,262.17

Finding the Fourth Proportional to 87,416.50, 131,147.79 and 31,262.17

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Solution

The fourth proportional to 87,416.50, 131,147.79 and 31,262.17 is: 46,901.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416.50 : 131,147.79 = 31,262.17 : x
  2. Step 2: Convert to fraction form
    87,416.50/131,147.79 = 31,262.17/x
  3. Step 3: Cross multiply
    87,416.50x = 131,147.79 × 31,262.17
  4. Step 4: Simplify right side
    87,416.50x = 4,099,964,506.10
  5. Step 5: Solve for x
    x = 4,099,964,506.10/87,416.50
  6. Step 6: Final answer
    x = 46,901.49

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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.