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Finding the Fourth Proportional to 36.40, 54.59 and 25.01

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Solution

The fourth proportional to 36.40, 54.59 and 25.01 is: 37.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.40 : 54.59 = 25.01 : x
  2. Step 2: Convert to fraction form
    36.40/54.59 = 25.01/x
  3. Step 3: Cross multiply
    36.40x = 54.59 × 25.01
  4. Step 4: Simplify right side
    36.40x = 1,365.30
  5. Step 5: Solve for x
    x = 1,365.30/36.40
  6. Step 6: Final answer
    x = 37.51

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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.