Home / 54,440.92-81,693-21,183.94

Finding the Fourth Proportional to 54,440.92, 81,693 and 21,183.94

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Solution

The fourth proportional to 54,440.92, 81,693 and 21,183.94 is: 31,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,440.92 : 81,693 = 21,183.94 : x
  2. Step 2: Convert to fraction form
    54,440.92/81,693 = 21,183.94/x
  3. Step 3: Cross multiply
    54,440.92x = 81,693 × 21,183.94
  4. Step 4: Simplify right side
    54,440.92x = 1,730,579,610.42
  5. Step 5: Solve for x
    x = 1,730,579,610.42/54,440.92
  6. Step 6: Final answer
    x = 31,788.21

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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.