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Finding the Fourth Proportional to 79.43, 119.03 and 48.95

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Solution

The fourth proportional to 79.43, 119.03 and 48.95 is: 73.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.43 : 119.03 = 48.95 : x
  2. Step 2: Convert to fraction form
    79.43/119.03 = 48.95/x
  3. Step 3: Cross multiply
    79.43x = 119.03 × 48.95
  4. Step 4: Simplify right side
    79.43x = 5,825.92
  5. Step 5: Solve for x
    x = 5,825.92/79.43
  6. Step 6: Final answer
    x = 73.35

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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.