Home / 54,855.19-82,285.98-15,415.38

Finding the Fourth Proportional to 54,855.19, 82,285.98 and 15,415.38

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Solution

The fourth proportional to 54,855.19, 82,285.98 and 15,415.38 is: 23,123.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,855.19 : 82,285.98 = 15,415.38 : x
  2. Step 2: Convert to fraction form
    54,855.19/82,285.98 = 15,415.38/x
  3. Step 3: Cross multiply
    54,855.19x = 82,285.98 × 15,415.38
  4. Step 4: Simplify right side
    54,855.19x = 1,268,469,592.56
  5. Step 5: Solve for x
    x = 1,268,469,592.56/54,855.19
  6. Step 6: Final answer
    x = 23,123.97

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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.