Home / 259,010.24-388,520.40-72,019.04

Finding the Fourth Proportional to 259,010.24, 388,520.40 and 72,019.04

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Solution

The fourth proportional to 259,010.24, 388,520.40 and 72,019.04 is: 108,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,010.24 : 388,520.40 = 72,019.04 : x
  2. Step 2: Convert to fraction form
    259,010.24/388,520.40 = 72,019.04/x
  3. Step 3: Cross multiply
    259,010.24x = 388,520.40 × 72,019.04
  4. Step 4: Simplify right side
    259,010.24x = 27,980,866,228.42
  5. Step 5: Solve for x
    x = 27,980,866,228.42/259,010.24
  6. Step 6: Final answer
    x = 108,029.96

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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.