Home / 54,682.48-82,020.97-21,408.64

Finding the Fourth Proportional to 54,682.48, 82,020.97 and 21,408.64

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Solution

The fourth proportional to 54,682.48, 82,020.97 and 21,408.64 is: 32,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,682.48 : 82,020.97 = 21,408.64 : x
  2. Step 2: Convert to fraction form
    54,682.48/82,020.97 = 21,408.64/x
  3. Step 3: Cross multiply
    54,682.48x = 82,020.97 × 21,408.64
  4. Step 4: Simplify right side
    54,682.48x = 1,755,957,496.60
  5. Step 5: Solve for x
    x = 1,755,957,496.60/54,682.48
  6. Step 6: Final answer
    x = 32,111.88

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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.