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Finding the Fourth Proportional to 70.17, 96.93 and 60.43

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Solution

The fourth proportional to 70.17, 96.93 and 60.43 is: 83.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.17 : 96.93 = 60.43 : x
  2. Step 2: Convert to fraction form
    70.17/96.93 = 60.43/x
  3. Step 3: Cross multiply
    70.17x = 96.93 × 60.43
  4. Step 4: Simplify right side
    70.17x = 5,857.48
  5. Step 5: Solve for x
    x = 5,857.48/70.17
  6. Step 6: Final answer
    x = 83.48

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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.