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Finding the Fourth Proportional to 56.63, 84.97 and 43.13

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Solution

The fourth proportional to 56.63, 84.97 and 43.13 is: 64.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.63 : 84.97 = 43.13 : x
  2. Step 2: Convert to fraction form
    56.63/84.97 = 43.13/x
  3. Step 3: Cross multiply
    56.63x = 84.97 × 43.13
  4. Step 4: Simplify right side
    56.63x = 3,664.22
  5. Step 5: Solve for x
    x = 3,664.22/56.63
  6. Step 6: Final answer
    x = 64.71

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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.