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Finding the Fourth Proportional to 92.01, 137.86 and 43.81

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Solution

The fourth proportional to 92.01, 137.86 and 43.81 is: 65.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.01 : 137.86 = 43.81 : x
  2. Step 2: Convert to fraction form
    92.01/137.86 = 43.81/x
  3. Step 3: Cross multiply
    92.01x = 137.86 × 43.81
  4. Step 4: Simplify right side
    92.01x = 6,039.65
  5. Step 5: Solve for x
    x = 6,039.65/92.01
  6. Step 6: Final answer
    x = 65.64

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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.