Home / 87,657.40-131,399.70-43,247.80

Finding the Fourth Proportional to 87,657.40, 131,399.70 and 43,247.80

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Solution

The fourth proportional to 87,657.40, 131,399.70 and 43,247.80 is: 64,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,657.40 : 131,399.70 = 43,247.80 : x
  2. Step 2: Convert to fraction form
    87,657.40/131,399.70 = 43,247.80/x
  3. Step 3: Cross multiply
    87,657.40x = 131,399.70 × 43,247.80
  4. Step 4: Simplify right side
    87,657.40x = 5,682,747,945.66
  5. Step 5: Solve for x
    x = 5,682,747,945.66/87,657.40
  6. Step 6: Final answer
    x = 64,829.07

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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.