Home / 54,414.41-81,583.33-21,106.40

Finding the Fourth Proportional to 54,414.41, 81,583.33 and 21,106.40

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Solution

The fourth proportional to 54,414.41, 81,583.33 and 21,106.40 is: 31,644.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,414.41 : 81,583.33 = 21,106.40 : x
  2. Step 2: Convert to fraction form
    54,414.41/81,583.33 = 21,106.40/x
  3. Step 3: Cross multiply
    54,414.41x = 81,583.33 × 21,106.40
  4. Step 4: Simplify right side
    54,414.41x = 1,721,930,396.31
  5. Step 5: Solve for x
    x = 1,721,930,396.31/54,414.41
  6. Step 6: Final answer
    x = 31,644.75

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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.