Home / 87,615.55-131,697.66-57,821.25

Finding the Fourth Proportional to 87,615.55, 131,697.66 and 57,821.25

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Solution

The fourth proportional to 87,615.55, 131,697.66 and 57,821.25 is: 86,912.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.55 : 131,697.66 = 57,821.25 : x
  2. Step 2: Convert to fraction form
    87,615.55/131,697.66 = 57,821.25/x
  3. Step 3: Cross multiply
    87,615.55x = 131,697.66 × 57,821.25
  4. Step 4: Simplify right side
    87,615.55x = 7,614,923,961.69
  5. Step 5: Solve for x
    x = 7,614,923,961.69/87,615.55
  6. Step 6: Final answer
    x = 86,912.93

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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.