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Finding the Fourth Proportional to 114.64, 171.93 and 52.92

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Solution

The fourth proportional to 114.64, 171.93 and 52.92 is: 79.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.64 : 171.93 = 52.92 : x
  2. Step 2: Convert to fraction form
    114.64/171.93 = 52.92/x
  3. Step 3: Cross multiply
    114.64x = 171.93 × 52.92
  4. Step 4: Simplify right side
    114.64x = 9,098.52
  5. Step 5: Solve for x
    x = 9,098.52/114.64
  6. Step 6: Final answer
    x = 79.37

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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.