Home / 68,974.12-103,387.61-39,328.12

Finding the Fourth Proportional to 68,974.12, 103,387.61 and 39,328.12

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Solution

The fourth proportional to 68,974.12, 103,387.61 and 39,328.12 is: 58,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,974.12 : 103,387.61 = 39,328.12 : x
  2. Step 2: Convert to fraction form
    68,974.12/103,387.61 = 39,328.12/x
  3. Step 3: Cross multiply
    68,974.12x = 103,387.61 × 39,328.12
  4. Step 4: Simplify right side
    68,974.12x = 4,066,040,332.59
  5. Step 5: Solve for x
    x = 4,066,040,332.59/68,974.12
  6. Step 6: Final answer
    x = 58,950.23

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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.