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Finding the Fourth Proportional to 63.95, 88.25 and 58.05

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Solution

The fourth proportional to 63.95, 88.25 and 58.05 is: 80.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.95 : 88.25 = 58.05 : x
  2. Step 2: Convert to fraction form
    63.95/88.25 = 58.05/x
  3. Step 3: Cross multiply
    63.95x = 88.25 × 58.05
  4. Step 4: Simplify right side
    63.95x = 5,122.62
  5. Step 5: Solve for x
    x = 5,122.62/63.95
  6. Step 6: Final answer
    x = 80.11

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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.