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Finding the Fourth Proportional to 64.43, 96.50 and 62.27

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Solution

The fourth proportional to 64.43, 96.50 and 62.27 is: 93.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.43 : 96.50 = 62.27 : x
  2. Step 2: Convert to fraction form
    64.43/96.50 = 62.27/x
  3. Step 3: Cross multiply
    64.43x = 96.50 × 62.27
  4. Step 4: Simplify right side
    64.43x = 6,009.45
  5. Step 5: Solve for x
    x = 6,009.45/64.43
  6. Step 6: Final answer
    x = 93.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.