Home / 54,636.11-81,964.49-21,354.05

Finding the Fourth Proportional to 54,636.11, 81,964.49 and 21,354.05

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Solution

The fourth proportional to 54,636.11, 81,964.49 and 21,354.05 is: 32,035.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,636.11 : 81,964.49 = 21,354.05 : x
  2. Step 2: Convert to fraction form
    54,636.11/81,964.49 = 21,354.05/x
  3. Step 3: Cross multiply
    54,636.11x = 81,964.49 × 21,354.05
  4. Step 4: Simplify right side
    54,636.11x = 1,750,273,817.68
  5. Step 5: Solve for x
    x = 1,750,273,817.68/54,636.11
  6. Step 6: Final answer
    x = 32,035.11

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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.