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Finding the Fourth Proportional to 71.03, 106.34 and 48.08

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Solution

The fourth proportional to 71.03, 106.34 and 48.08 is: 71.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.03 : 106.34 = 48.08 : x
  2. Step 2: Convert to fraction form
    71.03/106.34 = 48.08/x
  3. Step 3: Cross multiply
    71.03x = 106.34 × 48.08
  4. Step 4: Simplify right side
    71.03x = 5,112.06
  5. Step 5: Solve for x
    x = 5,112.06/71.03
  6. Step 6: Final answer
    x = 71.98

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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.