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Finding the Fourth Proportional to 70.50, 97.30 and 44.68

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Solution

The fourth proportional to 70.50, 97.30 and 44.68 is: 61.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.50 : 97.30 = 44.68 : x
  2. Step 2: Convert to fraction form
    70.50/97.30 = 44.68/x
  3. Step 3: Cross multiply
    70.50x = 97.30 × 44.68
  4. Step 4: Simplify right side
    70.50x = 4,347.36
  5. Step 5: Solve for x
    x = 4,347.36/70.50
  6. Step 6: Final answer
    x = 61.66

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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.