Home / 54,290.43-81,446.51-18,753.05

Finding the Fourth Proportional to 54,290.43, 81,446.51 and 18,753.05

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Solution

The fourth proportional to 54,290.43, 81,446.51 and 18,753.05 is: 28,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,290.43 : 81,446.51 = 18,753.05 : x
  2. Step 2: Convert to fraction form
    54,290.43/81,446.51 = 18,753.05/x
  3. Step 3: Cross multiply
    54,290.43x = 81,446.51 × 18,753.05
  4. Step 4: Simplify right side
    54,290.43x = 1,527,370,317.62
  5. Step 5: Solve for x
    x = 1,527,370,317.62/54,290.43
  6. Step 6: Final answer
    x = 28,133.32

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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.