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Finding the Fourth Proportional to 85.03, 127.33 and 60.62

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Solution

The fourth proportional to 85.03, 127.33 and 60.62 is: 90.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85.03 : 127.33 = 60.62 : x
  2. Step 2: Convert to fraction form
    85.03/127.33 = 60.62/x
  3. Step 3: Cross multiply
    85.03x = 127.33 × 60.62
  4. Step 4: Simplify right side
    85.03x = 7,717.96
  5. Step 5: Solve for x
    x = 7,717.96/85.03
  6. Step 6: Final answer
    x = 90.77

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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.