Home / 54,954.90-82,382.40-19,869.75

Finding the Fourth Proportional to 54,954.90, 82,382.40 and 19,869.75

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Solution

The fourth proportional to 54,954.90, 82,382.40 and 19,869.75 is: 29,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,954.90 : 82,382.40 = 19,869.75 : x
  2. Step 2: Convert to fraction form
    54,954.90/82,382.40 = 19,869.75/x
  3. Step 3: Cross multiply
    54,954.90x = 82,382.40 × 19,869.75
  4. Step 4: Simplify right side
    54,954.90x = 1,636,917,692.40
  5. Step 5: Solve for x
    x = 1,636,917,692.40/54,954.90
  6. Step 6: Final answer
    x = 29,786.56

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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.