Home / 54,744.20-82,116.30-19,687.40

Finding the Fourth Proportional to 54,744.20, 82,116.30 and 19,687.40

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Solution

The fourth proportional to 54,744.20, 82,116.30 and 19,687.40 is: 29,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,744.20 : 82,116.30 = 19,687.40 : x
  2. Step 2: Convert to fraction form
    54,744.20/82,116.30 = 19,687.40/x
  3. Step 3: Cross multiply
    54,744.20x = 82,116.30 × 19,687.40
  4. Step 4: Simplify right side
    54,744.20x = 1,616,656,444.62
  5. Step 5: Solve for x
    x = 1,616,656,444.62/54,744.20
  6. Step 6: Final answer
    x = 29,531.10

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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.