Home / 54,394.32-81,582.30-21,109.26

Finding the Fourth Proportional to 54,394.32, 81,582.30 and 21,109.26

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Solution

The fourth proportional to 54,394.32, 81,582.30 and 21,109.26 is: 31,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,394.32 : 81,582.30 = 21,109.26 : x
  2. Step 2: Convert to fraction form
    54,394.32/81,582.30 = 21,109.26/x
  3. Step 3: Cross multiply
    54,394.32x = 81,582.30 × 21,109.26
  4. Step 4: Simplify right side
    54,394.32x = 1,722,141,982.10
  5. Step 5: Solve for x
    x = 1,722,141,982.10/54,394.32
  6. Step 6: Final answer
    x = 31,660.33

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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.