Home / 87,571.67-131,223.78-45,465.54

Finding the Fourth Proportional to 87,571.67, 131,223.78 and 45,465.54

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Solution

The fourth proportional to 87,571.67, 131,223.78 and 45,465.54 is: 68,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,571.67 : 131,223.78 = 45,465.54 : x
  2. Step 2: Convert to fraction form
    87,571.67/131,223.78 = 45,465.54/x
  3. Step 3: Cross multiply
    87,571.67x = 131,223.78 × 45,465.54
  4. Step 4: Simplify right side
    87,571.67x = 5,966,160,018.54
  5. Step 5: Solve for x
    x = 5,966,160,018.54/87,571.67
  6. Step 6: Final answer
    x = 68,128.88

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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.