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Finding the Fourth Proportional to 64.02, 95.45 and 63.22

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Solution

The fourth proportional to 64.02, 95.45 and 63.22 is: 94.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.02 : 95.45 = 63.22 : x
  2. Step 2: Convert to fraction form
    64.02/95.45 = 63.22/x
  3. Step 3: Cross multiply
    64.02x = 95.45 × 63.22
  4. Step 4: Simplify right side
    64.02x = 6,034.37
  5. Step 5: Solve for x
    x = 6,034.37/64.02
  6. Step 6: Final answer
    x = 94.26

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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.