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Finding the Fourth Proportional to 60.37, 83.26 and 39.64

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Solution

The fourth proportional to 60.37, 83.26 and 39.64 is: 54.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.37 : 83.26 = 39.64 : x
  2. Step 2: Convert to fraction form
    60.37/83.26 = 39.64/x
  3. Step 3: Cross multiply
    60.37x = 83.26 × 39.64
  4. Step 4: Simplify right side
    60.37x = 3,300.43
  5. Step 5: Solve for x
    x = 3,300.43/60.37
  6. Step 6: Final answer
    x = 54.67

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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.