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Finding the Fourth Proportional to 70.29, 97.10 and 50.99

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Solution

The fourth proportional to 70.29, 97.10 and 50.99 is: 70.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.29 : 97.10 = 50.99 : x
  2. Step 2: Convert to fraction form
    70.29/97.10 = 50.99/x
  3. Step 3: Cross multiply
    70.29x = 97.10 × 50.99
  4. Step 4: Simplify right side
    70.29x = 4,951.13
  5. Step 5: Solve for x
    x = 4,951.13/70.29
  6. Step 6: Final answer
    x = 70.44

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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.