Home / 54,324.60-81,422.10-28,015.80

Finding the Fourth Proportional to 54,324.60, 81,422.10 and 28,015.80

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Solution

The fourth proportional to 54,324.60, 81,422.10 and 28,015.80 is: 41,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,324.60 : 81,422.10 = 28,015.80 : x
  2. Step 2: Convert to fraction form
    54,324.60/81,422.10 = 28,015.80/x
  3. Step 3: Cross multiply
    54,324.60x = 81,422.10 × 28,015.80
  4. Step 4: Simplify right side
    54,324.60x = 2,281,105,269.18
  5. Step 5: Solve for x
    x = 2,281,105,269.18/54,324.60
  6. Step 6: Final answer
    x = 41,990.28

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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.