Home / 87,875.43-131,785.88-31,708.25

Finding the Fourth Proportional to 87,875.43, 131,785.88 and 31,708.25

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Solution

The fourth proportional to 87,875.43, 131,785.88 and 31,708.25 is: 47,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.43 : 131,785.88 = 31,708.25 : x
  2. Step 2: Convert to fraction form
    87,875.43/131,785.88 = 31,708.25/x
  3. Step 3: Cross multiply
    87,875.43x = 131,785.88 × 31,708.25
  4. Step 4: Simplify right side
    87,875.43x = 4,178,698,812.04
  5. Step 5: Solve for x
    x = 4,178,698,812.04/87,875.43
  6. Step 6: Final answer
    x = 47,552.53

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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.