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Finding the Fourth Proportional to 70.54, 97.30 and 59.61

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Solution

The fourth proportional to 70.54, 97.30 and 59.61 is: 82.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.54 : 97.30 = 59.61 : x
  2. Step 2: Convert to fraction form
    70.54/97.30 = 59.61/x
  3. Step 3: Cross multiply
    70.54x = 97.30 × 59.61
  4. Step 4: Simplify right side
    70.54x = 5,800.05
  5. Step 5: Solve for x
    x = 5,800.05/70.54
  6. Step 6: Final answer
    x = 82.22

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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.