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Finding the Fourth Proportional to 64.43, 96.63 and 23.83

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Solution

The fourth proportional to 64.43, 96.63 and 23.83 is: 35.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.43 : 96.63 = 23.83 : x
  2. Step 2: Convert to fraction form
    64.43/96.63 = 23.83/x
  3. Step 3: Cross multiply
    64.43x = 96.63 × 23.83
  4. Step 4: Simplify right side
    64.43x = 2,302.36
  5. Step 5: Solve for x
    x = 2,302.36/64.43
  6. Step 6: Final answer
    x = 35.74

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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.