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Finding the Fourth Proportional to 73.49, 110.43 and 64.08

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Solution

The fourth proportional to 73.49, 110.43 and 64.08 is: 96.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.49 : 110.43 = 64.08 : x
  2. Step 2: Convert to fraction form
    73.49/110.43 = 64.08/x
  3. Step 3: Cross multiply
    73.49x = 110.43 × 64.08
  4. Step 4: Simplify right side
    73.49x = 7,076.35
  5. Step 5: Solve for x
    x = 7,076.35/73.49
  6. Step 6: Final answer
    x = 96.30

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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.