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Finding the Fourth Proportional to 68.23, 94.14 and 43.70

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Solution

The fourth proportional to 68.23, 94.14 and 43.70 is: 60.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.23 : 94.14 = 43.70 : x
  2. Step 2: Convert to fraction form
    68.23/94.14 = 43.70/x
  3. Step 3: Cross multiply
    68.23x = 94.14 × 43.70
  4. Step 4: Simplify right side
    68.23x = 4,113.92
  5. Step 5: Solve for x
    x = 4,113.92/68.23
  6. Step 6: Final answer
    x = 60.29

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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.