Home / 259,546.72-389,317.65-82,053.75

Finding the Fourth Proportional to 259,546.72, 389,317.65 and 82,053.75

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Solution

The fourth proportional to 259,546.72, 389,317.65 and 82,053.75 is: 123,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,546.72 : 389,317.65 = 82,053.75 : x
  2. Step 2: Convert to fraction form
    259,546.72/389,317.65 = 82,053.75/x
  3. Step 3: Cross multiply
    259,546.72x = 389,317.65 × 82,053.75
  4. Step 4: Simplify right side
    259,546.72x = 31,944,973,123.69
  5. Step 5: Solve for x
    x = 31,944,973,123.69/259,546.72
  6. Step 6: Final answer
    x = 123,079.86

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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.