Home / 259,510.24-389,231.96-82,035.20

Finding the Fourth Proportional to 259,510.24, 389,231.96 and 82,035.20

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Solution

The fourth proportional to 259,510.24, 389,231.96 and 82,035.20 is: 123,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,510.24 : 389,231.96 = 82,035.20 : x
  2. Step 2: Convert to fraction form
    259,510.24/389,231.96 = 82,035.20/x
  3. Step 3: Cross multiply
    259,510.24x = 389,231.96 × 82,035.20
  4. Step 4: Simplify right side
    259,510.24x = 31,930,721,684.99
  5. Step 5: Solve for x
    x = 31,930,721,684.99/259,510.24
  6. Step 6: Final answer
    x = 123,042.24

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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.