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Finding the Fourth Proportional to 76.13, 114.14 and 35.53

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Solution

The fourth proportional to 76.13, 114.14 and 35.53 is: 53.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76.13 : 114.14 = 35.53 : x
  2. Step 2: Convert to fraction form
    76.13/114.14 = 35.53/x
  3. Step 3: Cross multiply
    76.13x = 114.14 × 35.53
  4. Step 4: Simplify right side
    76.13x = 4,054.93
  5. Step 5: Solve for x
    x = 4,054.93/76.13
  6. Step 6: Final answer
    x = 53.27

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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.