Home / 57,755.14-86,635.05-18,311.38

Finding the Fourth Proportional to 57,755.14, 86,635.05 and 18,311.38

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Solution

The fourth proportional to 57,755.14, 86,635.05 and 18,311.38 is: 27,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,755.14 : 86,635.05 = 18,311.38 : x
  2. Step 2: Convert to fraction form
    57,755.14/86,635.05 = 18,311.38/x
  3. Step 3: Cross multiply
    57,755.14x = 86,635.05 × 18,311.38
  4. Step 4: Simplify right side
    57,755.14x = 1,586,407,321.87
  5. Step 5: Solve for x
    x = 1,586,407,321.87/57,755.14
  6. Step 6: Final answer
    x = 27,467.81

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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.