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Finding the Fourth Proportional to 59.42, 89.19 and 55.37

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Solution

The fourth proportional to 59.42, 89.19 and 55.37 is: 83.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.42 : 89.19 = 55.37 : x
  2. Step 2: Convert to fraction form
    59.42/89.19 = 55.37/x
  3. Step 3: Cross multiply
    59.42x = 89.19 × 55.37
  4. Step 4: Simplify right side
    59.42x = 4,938.45
  5. Step 5: Solve for x
    x = 4,938.45/59.42
  6. Step 6: Final answer
    x = 83.11

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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.