Home / 87,568.16-131,370.69-28,399.22

Finding the Fourth Proportional to 87,568.16, 131,370.69 and 28,399.22

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Solution

The fourth proportional to 87,568.16, 131,370.69 and 28,399.22 is: 42,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,568.16 : 131,370.69 = 28,399.22 : x
  2. Step 2: Convert to fraction form
    87,568.16/131,370.69 = 28,399.22/x
  3. Step 3: Cross multiply
    87,568.16x = 131,370.69 × 28,399.22
  4. Step 4: Simplify right side
    87,568.16x = 3,730,824,470.01
  5. Step 5: Solve for x
    x = 3,730,824,470.01/87,568.16
  6. Step 6: Final answer
    x = 42,604.81

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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.