Home / 54,218.53-81,331.89-16,782.40

Finding the Fourth Proportional to 54,218.53, 81,331.89 and 16,782.40

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Solution

The fourth proportional to 54,218.53, 81,331.89 and 16,782.40 is: 25,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.53 : 81,331.89 = 16,782.40 : x
  2. Step 2: Convert to fraction form
    54,218.53/81,331.89 = 16,782.40/x
  3. Step 3: Cross multiply
    54,218.53x = 81,331.89 × 16,782.40
  4. Step 4: Simplify right side
    54,218.53x = 1,364,944,310.74
  5. Step 5: Solve for x
    x = 1,364,944,310.74/54,218.53
  6. Step 6: Final answer
    x = 25,174.87

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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.