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Finding the Fourth Proportional to 62.99, 94.37 and 45.92

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Solution

The fourth proportional to 62.99, 94.37 and 45.92 is: 68.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.99 : 94.37 = 45.92 : x
  2. Step 2: Convert to fraction form
    62.99/94.37 = 45.92/x
  3. Step 3: Cross multiply
    62.99x = 94.37 × 45.92
  4. Step 4: Simplify right side
    62.99x = 4,332.95
  5. Step 5: Solve for x
    x = 4,332.95/62.99
  6. Step 6: Final answer
    x = 68.78

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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.