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Finding the Fourth Proportional to 68,604.82, 94,663.23 and 40,315.97

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Solution

The fourth proportional to 68,604.82, 94,663.23 and 40,315.97 is: 55,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,604.82 : 94,663.23 = 40,315.97 : x
  2. Step 2: Convert to fraction form
    68,604.82/94,663.23 = 40,315.97/x
  3. Step 3: Cross multiply
    68,604.82x = 94,663.23 × 40,315.97
  4. Step 4: Simplify right side
    68,604.82x = 3,816,439,940.78
  5. Step 5: Solve for x
    x = 3,816,439,940.78/68,604.82
  6. Step 6: Final answer
    x = 55,629.33

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1.5x scale

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.