Home / 54,597.38-81,847.31-21,309.66

Finding the Fourth Proportional to 54,597.38, 81,847.31 and 21,309.66

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Solution

The fourth proportional to 54,597.38, 81,847.31 and 21,309.66 is: 31,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,597.38 : 81,847.31 = 21,309.66 : x
  2. Step 2: Convert to fraction form
    54,597.38/81,847.31 = 21,309.66/x
  3. Step 3: Cross multiply
    54,597.38x = 81,847.31 × 21,309.66
  4. Step 4: Simplify right side
    54,597.38x = 1,744,138,241.47
  5. Step 5: Solve for x
    x = 1,744,138,241.47/54,597.38
  6. Step 6: Final answer
    x = 31,945.46

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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.