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Finding the Fourth Proportional to 63.51, 94.61 and 61.33

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Solution

The fourth proportional to 63.51, 94.61 and 61.33 is: 91.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.51 : 94.61 = 61.33 : x
  2. Step 2: Convert to fraction form
    63.51/94.61 = 61.33/x
  3. Step 3: Cross multiply
    63.51x = 94.61 × 61.33
  4. Step 4: Simplify right side
    63.51x = 5,802.43
  5. Step 5: Solve for x
    x = 5,802.43/63.51
  6. Step 6: Final answer
    x = 91.36

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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.