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Finding the Fourth Proportional to 62.89, 94.16 and 43.67

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Solution

The fourth proportional to 62.89, 94.16 and 43.67 is: 65.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.89 : 94.16 = 43.67 : x
  2. Step 2: Convert to fraction form
    62.89/94.16 = 43.67/x
  3. Step 3: Cross multiply
    62.89x = 94.16 × 43.67
  4. Step 4: Simplify right side
    62.89x = 4,112.31
  5. Step 5: Solve for x
    x = 4,112.31/62.89
  6. Step 6: Final answer
    x = 65.39

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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.