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Finding the Fourth Proportional to 45.95, 69.21 and 41.94

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Solution

The fourth proportional to 45.95, 69.21 and 41.94 is: 63.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.95 : 69.21 = 41.94 : x
  2. Step 2: Convert to fraction form
    45.95/69.21 = 41.94/x
  3. Step 3: Cross multiply
    45.95x = 69.21 × 41.94
  4. Step 4: Simplify right side
    45.95x = 2,902.67
  5. Step 5: Solve for x
    x = 2,902.67/45.95
  6. Step 6: Final answer
    x = 63.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.