Home / 54,582.43-81,856.23-21,294.40

Finding the Fourth Proportional to 54,582.43, 81,856.23 and 21,294.40

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Solution

The fourth proportional to 54,582.43, 81,856.23 and 21,294.40 is: 31,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,582.43 : 81,856.23 = 21,294.40 : x
  2. Step 2: Convert to fraction form
    54,582.43/81,856.23 = 21,294.40/x
  3. Step 3: Cross multiply
    54,582.43x = 81,856.23 × 21,294.40
  4. Step 4: Simplify right side
    54,582.43x = 1,743,079,304.11
  5. Step 5: Solve for x
    x = 1,743,079,304.11/54,582.43
  6. Step 6: Final answer
    x = 31,934.81

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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.