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Finding the Fourth Proportional to 61.94, 85.46 and 41.17

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Solution

The fourth proportional to 61.94, 85.46 and 41.17 is: 56.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.94 : 85.46 = 41.17 : x
  2. Step 2: Convert to fraction form
    61.94/85.46 = 41.17/x
  3. Step 3: Cross multiply
    61.94x = 85.46 × 41.17
  4. Step 4: Simplify right side
    61.94x = 3,518.18
  5. Step 5: Solve for x
    x = 3,518.18/61.94
  6. Step 6: Final answer
    x = 56.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.