Home / 54,641.83-81,982.29-21,385.75

Finding the Fourth Proportional to 54,641.83, 81,982.29 and 21,385.75

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Solution

The fourth proportional to 54,641.83, 81,982.29 and 21,385.75 is: 32,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,641.83 : 81,982.29 = 21,385.75 : x
  2. Step 2: Convert to fraction form
    54,641.83/81,982.29 = 21,385.75/x
  3. Step 3: Cross multiply
    54,641.83x = 81,982.29 × 21,385.75
  4. Step 4: Simplify right side
    54,641.83x = 1,753,252,758.37
  5. Step 5: Solve for x
    x = 1,753,252,758.37/54,641.83
  6. Step 6: Final answer
    x = 32,086.27

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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.