Home / 54,532.72-81,786.92-21,253.68

Finding the Fourth Proportional to 54,532.72, 81,786.92 and 21,253.68

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Solution

The fourth proportional to 54,532.72, 81,786.92 and 21,253.68 is: 31,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,532.72 : 81,786.92 = 21,253.68 : x
  2. Step 2: Convert to fraction form
    54,532.72/81,786.92 = 21,253.68/x
  3. Step 3: Cross multiply
    54,532.72x = 81,786.92 × 21,253.68
  4. Step 4: Simplify right side
    54,532.72x = 1,738,273,025.87
  5. Step 5: Solve for x
    x = 1,738,273,025.87/54,532.72
  6. Step 6: Final answer
    x = 31,875.78

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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.