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Finding the Fourth Proportional to 73.12, 100.76 and 59.96

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Solution

The fourth proportional to 73.12, 100.76 and 59.96 is: 82.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.12 : 100.76 = 59.96 : x
  2. Step 2: Convert to fraction form
    73.12/100.76 = 59.96/x
  3. Step 3: Cross multiply
    73.12x = 100.76 × 59.96
  4. Step 4: Simplify right side
    73.12x = 6,041.57
  5. Step 5: Solve for x
    x = 6,041.57/73.12
  6. Step 6: Final answer
    x = 82.63

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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.