Home / 54,858.24-82,238.09-19,789.70

Finding the Fourth Proportional to 54,858.24, 82,238.09 and 19,789.70

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Solution

The fourth proportional to 54,858.24, 82,238.09 and 19,789.70 is: 29,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,858.24 : 82,238.09 = 19,789.70 : x
  2. Step 2: Convert to fraction form
    54,858.24/82,238.09 = 19,789.70/x
  3. Step 3: Cross multiply
    54,858.24x = 82,238.09 × 19,789.70
  4. Step 4: Simplify right side
    54,858.24x = 1,627,466,619.53
  5. Step 5: Solve for x
    x = 1,627,466,619.53/54,858.24
  6. Step 6: Final answer
    x = 29,666.77

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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.