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Finding the Fourth Proportional to 70.03, 96.36 and 59.54

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Solution

The fourth proportional to 70.03, 96.36 and 59.54 is: 81.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.03 : 96.36 = 59.54 : x
  2. Step 2: Convert to fraction form
    70.03/96.36 = 59.54/x
  3. Step 3: Cross multiply
    70.03x = 96.36 × 59.54
  4. Step 4: Simplify right side
    70.03x = 5,736.57
  5. Step 5: Solve for x
    x = 5,736.57/70.03
  6. Step 6: Final answer
    x = 81.91

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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.