Home / 68,742-94,849.56-40,450.80

Finding the Fourth Proportional to 68,742, 94,849.56 and 40,450.80

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Solution

The fourth proportional to 68,742, 94,849.56 and 40,450.80 is: 55,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,742 : 94,849.56 = 40,450.80 : x
  2. Step 2: Convert to fraction form
    68,742/94,849.56 = 40,450.80/x
  3. Step 3: Cross multiply
    68,742x = 94,849.56 × 40,450.80
  4. Step 4: Simplify right side
    68,742x = 3,836,740,581.65
  5. Step 5: Solve for x
    x = 3,836,740,581.65/68,742
  6. Step 6: Final answer
    x = 55,813.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.