Home / 259,032.75-388,571.13-72,044.25

Finding the Fourth Proportional to 259,032.75, 388,571.13 and 72,044.25

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Solution

The fourth proportional to 259,032.75, 388,571.13 and 72,044.25 is: 108,072.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,032.75 : 388,571.13 = 72,044.25 : x
  2. Step 2: Convert to fraction form
    259,032.75/388,571.13 = 72,044.25/x
  3. Step 3: Cross multiply
    259,032.75x = 388,571.13 × 72,044.25
  4. Step 4: Simplify right side
    259,032.75x = 27,994,315,632.50
  5. Step 5: Solve for x
    x = 27,994,315,632.50/259,032.75
  6. Step 6: Final answer
    x = 108,072.50

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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.