Home / 54,747.56-82,121.40-17,811.56

Finding the Fourth Proportional to 54,747.56, 82,121.40 and 17,811.56

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Solution

The fourth proportional to 54,747.56, 82,121.40 and 17,811.56 is: 26,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,747.56 : 82,121.40 = 17,811.56 : x
  2. Step 2: Convert to fraction form
    54,747.56/82,121.40 = 17,811.56/x
  3. Step 3: Cross multiply
    54,747.56x = 82,121.40 × 17,811.56
  4. Step 4: Simplify right side
    54,747.56x = 1,462,710,243.38
  5. Step 5: Solve for x
    x = 1,462,710,243.38/54,747.56
  6. Step 6: Final answer
    x = 26,717.36

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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.