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Finding the Fourth Proportional to 62.99, 94.46 and 30.49

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Solution

The fourth proportional to 62.99, 94.46 and 30.49 is: 45.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.99 : 94.46 = 30.49 : x
  2. Step 2: Convert to fraction form
    62.99/94.46 = 30.49/x
  3. Step 3: Cross multiply
    62.99x = 94.46 × 30.49
  4. Step 4: Simplify right side
    62.99x = 2,880.09
  5. Step 5: Solve for x
    x = 2,880.09/62.99
  6. Step 6: Final answer
    x = 45.72

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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.