Home / 54,647.70-81,983.09-17,218.41

Finding the Fourth Proportional to 54,647.70, 81,983.09 and 17,218.41

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Solution

The fourth proportional to 54,647.70, 81,983.09 and 17,218.41 is: 25,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,647.70 : 81,983.09 = 17,218.41 : x
  2. Step 2: Convert to fraction form
    54,647.70/81,983.09 = 17,218.41/x
  3. Step 3: Cross multiply
    54,647.70x = 81,983.09 × 17,218.41
  4. Step 4: Simplify right side
    54,647.70x = 1,411,618,456.69
  5. Step 5: Solve for x
    x = 1,411,618,456.69/54,647.70
  6. Step 6: Final answer
    x = 25,831.25

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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.