Home / 54,398.34-81,553.23-21,101.22

Finding the Fourth Proportional to 54,398.34, 81,553.23 and 21,101.22

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Solution

The fourth proportional to 54,398.34, 81,553.23 and 21,101.22 is: 31,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,398.34 : 81,553.23 = 21,101.22 : x
  2. Step 2: Convert to fraction form
    54,398.34/81,553.23 = 21,101.22/x
  3. Step 3: Cross multiply
    54,398.34x = 81,553.23 × 21,101.22
  4. Step 4: Simplify right side
    54,398.34x = 1,720,872,647.94
  5. Step 5: Solve for x
    x = 1,720,872,647.94/54,398.34
  6. Step 6: Final answer
    x = 31,634.65

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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.