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Finding the Fourth Proportional to 84.41, 116.45 and 51.19

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Solution

The fourth proportional to 84.41, 116.45 and 51.19 is: 70.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.41 : 116.45 = 51.19 : x
  2. Step 2: Convert to fraction form
    84.41/116.45 = 51.19/x
  3. Step 3: Cross multiply
    84.41x = 116.45 × 51.19
  4. Step 4: Simplify right side
    84.41x = 5,960.72
  5. Step 5: Solve for x
    x = 5,960.72/84.41
  6. Step 6: Final answer
    x = 70.62

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