Home / 259,037.45-388,578.04-72,048.95

Finding the Fourth Proportional to 259,037.45, 388,578.04 and 72,048.95

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Solution

The fourth proportional to 259,037.45, 388,578.04 and 72,048.95 is: 108,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,037.45 : 388,578.04 = 72,048.95 : x
  2. Step 2: Convert to fraction form
    259,037.45/388,578.04 = 72,048.95/x
  3. Step 3: Cross multiply
    259,037.45x = 388,578.04 × 72,048.95
  4. Step 4: Simplify right side
    259,037.45x = 27,996,639,775.06
  5. Step 5: Solve for x
    x = 27,996,639,775.06/259,037.45
  6. Step 6: Final answer
    x = 108,079.51

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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.