Home / 54,450.26-81,680.43-21,172.83

Finding the Fourth Proportional to 54,450.26, 81,680.43 and 21,172.83

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Solution

The fourth proportional to 54,450.26, 81,680.43 and 21,172.83 is: 31,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,450.26 : 81,680.43 = 21,172.83 : x
  2. Step 2: Convert to fraction form
    54,450.26/81,680.43 = 21,172.83/x
  3. Step 3: Cross multiply
    54,450.26x = 81,680.43 × 21,172.83
  4. Step 4: Simplify right side
    54,450.26x = 1,729,405,631.81
  5. Step 5: Solve for x
    x = 1,729,405,631.81/54,450.26
  6. Step 6: Final answer
    x = 31,761.20

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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.