Home / 54,974.28-82,406-21,681.48

Finding the Fourth Proportional to 54,974.28, 82,406 and 21,681.48

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Solution

The fourth proportional to 54,974.28, 82,406 and 21,681.48 is: 32,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,974.28 : 82,406 = 21,681.48 : x
  2. Step 2: Convert to fraction form
    54,974.28/82,406 = 21,681.48/x
  3. Step 3: Cross multiply
    54,974.28x = 82,406 × 21,681.48
  4. Step 4: Simplify right side
    54,974.28x = 1,786,684,040.88
  5. Step 5: Solve for x
    x = 1,786,684,040.88/54,974.28
  6. Step 6: Final answer
    x = 32,500.36

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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.