Home / 54,869.25-81,812.18-53,872.80

Finding the Fourth Proportional to 54,869.25, 81,812.18 and 53,872.80

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Solution

The fourth proportional to 54,869.25, 81,812.18 and 53,872.80 is: 80,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,869.25 : 81,812.18 = 53,872.80 : x
  2. Step 2: Convert to fraction form
    54,869.25/81,812.18 = 53,872.80/x
  3. Step 3: Cross multiply
    54,869.25x = 81,812.18 × 53,872.80
  4. Step 4: Simplify right side
    54,869.25x = 4,407,450,735.56
  5. Step 5: Solve for x
    x = 4,407,450,735.56/54,869.25
  6. Step 6: Final answer
    x = 80,326.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.