Home / 54,150.24-81,239.19-20,861.37

Finding the Fourth Proportional to 54,150.24, 81,239.19 and 20,861.37

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Solution

The fourth proportional to 54,150.24, 81,239.19 and 20,861.37 is: 31,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,150.24 : 81,239.19 = 20,861.37 : x
  2. Step 2: Convert to fraction form
    54,150.24/81,239.19 = 20,861.37/x
  3. Step 3: Cross multiply
    54,150.24x = 81,239.19 × 20,861.37
  4. Step 4: Simplify right side
    54,150.24x = 1,694,760,801.09
  5. Step 5: Solve for x
    x = 1,694,760,801.09/54,150.24
  6. Step 6: Final answer
    x = 31,297.38

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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.