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Finding the Fourth Proportional to 70.96, 97.84 and 46.08

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Solution

The fourth proportional to 70.96, 97.84 and 46.08 is: 63.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.96 : 97.84 = 46.08 : x
  2. Step 2: Convert to fraction form
    70.96/97.84 = 46.08/x
  3. Step 3: Cross multiply
    70.96x = 97.84 × 46.08
  4. Step 4: Simplify right side
    70.96x = 4,508.47
  5. Step 5: Solve for x
    x = 4,508.47/70.96
  6. Step 6: Final answer
    x = 63.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.