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Finding the Fourth Proportional to 45.16, 67.10 and 41.92

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Solution

The fourth proportional to 45.16, 67.10 and 41.92 is: 62.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.16 : 67.10 = 41.92 : x
  2. Step 2: Convert to fraction form
    45.16/67.10 = 41.92/x
  3. Step 3: Cross multiply
    45.16x = 67.10 × 41.92
  4. Step 4: Simplify right side
    45.16x = 2,812.83
  5. Step 5: Solve for x
    x = 2,812.83/45.16
  6. Step 6: Final answer
    x = 62.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.