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Finding the Fourth Proportional to 45.62, 68.41 and 15.18

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Solution

The fourth proportional to 45.62, 68.41 and 15.18 is: 22.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.62 : 68.41 = 15.18 : x
  2. Step 2: Convert to fraction form
    45.62/68.41 = 15.18/x
  3. Step 3: Cross multiply
    45.62x = 68.41 × 15.18
  4. Step 4: Simplify right side
    45.62x = 1,038.14
  5. Step 5: Solve for x
    x = 1,038.14/45.62
  6. Step 6: Final answer
    x = 22.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.