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Finding the Fourth Proportional to 72.73, 109.55 and 59.37

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Solution

The fourth proportional to 72.73, 109.55 and 59.37 is: 89.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72.73 : 109.55 = 59.37 : x
  2. Step 2: Convert to fraction form
    72.73/109.55 = 59.37/x
  3. Step 3: Cross multiply
    72.73x = 109.55 × 59.37
  4. Step 4: Simplify right side
    72.73x = 6,503.98
  5. Step 5: Solve for x
    x = 6,503.98/72.73
  6. Step 6: Final answer
    x = 89.43

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.