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Finding the Fourth Proportional to 45.28, 68.06 and 36.37

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Solution

The fourth proportional to 45.28, 68.06 and 36.37 is: 54.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.28 : 68.06 = 36.37 : x
  2. Step 2: Convert to fraction form
    45.28/68.06 = 36.37/x
  3. Step 3: Cross multiply
    45.28x = 68.06 × 36.37
  4. Step 4: Simplify right side
    45.28x = 2,475.34
  5. Step 5: Solve for x
    x = 2,475.34/45.28
  6. Step 6: Final answer
    x = 54.67

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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.