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Finding the Fourth Proportional to 59.11, 88.41 and 50.91

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Solution

The fourth proportional to 59.11, 88.41 and 50.91 is: 76.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.11 : 88.41 = 50.91 : x
  2. Step 2: Convert to fraction form
    59.11/88.41 = 50.91/x
  3. Step 3: Cross multiply
    59.11x = 88.41 × 50.91
  4. Step 4: Simplify right side
    59.11x = 4,501.02
  5. Step 5: Solve for x
    x = 4,501.02/59.11
  6. Step 6: Final answer
    x = 76.14

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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.