Home / 54,881.68-82,312.92-15,429.42

Finding the Fourth Proportional to 54,881.68, 82,312.92 and 15,429.42

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Solution

The fourth proportional to 54,881.68, 82,312.92 and 15,429.42 is: 23,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,881.68 : 82,312.92 = 15,429.42 : x
  2. Step 2: Convert to fraction form
    54,881.68/82,312.92 = 15,429.42/x
  3. Step 3: Cross multiply
    54,881.68x = 82,312.92 × 15,429.42
  4. Step 4: Simplify right side
    54,881.68x = 1,270,040,614.11
  5. Step 5: Solve for x
    x = 1,270,040,614.11/54,881.68
  6. Step 6: Final answer
    x = 23,141.43

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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.