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Finding the Fourth Proportional to 70.03, 104.90 and 44.39

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Solution

The fourth proportional to 70.03, 104.90 and 44.39 is: 66.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.03 : 104.90 = 44.39 : x
  2. Step 2: Convert to fraction form
    70.03/104.90 = 44.39/x
  3. Step 3: Cross multiply
    70.03x = 104.90 × 44.39
  4. Step 4: Simplify right side
    70.03x = 4,656.72
  5. Step 5: Solve for x
    x = 4,656.72/70.03
  6. Step 6: Final answer
    x = 66.50

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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.