Home / 259,033.69-388,572.41-72,045.19

Finding the Fourth Proportional to 259,033.69, 388,572.41 and 72,045.19

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Solution

The fourth proportional to 259,033.69, 388,572.41 and 72,045.19 is: 108,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,033.69 : 388,572.41 = 72,045.19 : x
  2. Step 2: Convert to fraction form
    259,033.69/388,572.41 = 72,045.19/x
  3. Step 3: Cross multiply
    259,033.69x = 388,572.41 × 72,045.19
  4. Step 4: Simplify right side
    259,033.69x = 27,994,771,775.55
  5. Step 5: Solve for x
    x = 27,994,771,775.55/259,033.69
  6. Step 6: Final answer
    x = 108,073.87

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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.