Home / 54,261.49-81,375.49-19,193.08

Finding the Fourth Proportional to 54,261.49, 81,375.49 and 19,193.08

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Solution

The fourth proportional to 54,261.49, 81,375.49 and 19,193.08 is: 28,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.49 : 81,375.49 = 19,193.08 : x
  2. Step 2: Convert to fraction form
    54,261.49/81,375.49 = 19,193.08/x
  3. Step 3: Cross multiply
    54,261.49x = 81,375.49 × 19,193.08
  4. Step 4: Simplify right side
    54,261.49x = 1,561,846,289.61
  5. Step 5: Solve for x
    x = 1,561,846,289.61/54,261.49
  6. Step 6: Final answer
    x = 28,783.70

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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.