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Finding the Fourth Proportional to 64.51, 96.79 and 34.04

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Solution

The fourth proportional to 64.51, 96.79 and 34.04 is: 51.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.51 : 96.79 = 34.04 : x
  2. Step 2: Convert to fraction form
    64.51/96.79 = 34.04/x
  3. Step 3: Cross multiply
    64.51x = 96.79 × 34.04
  4. Step 4: Simplify right side
    64.51x = 3,294.16
  5. Step 5: Solve for x
    x = 3,294.16/64.51
  6. Step 6: Final answer
    x = 51.07

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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.