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Finding the Fourth Proportional to 96.10, 144.23 and 52.80

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Solution

The fourth proportional to 96.10, 144.23 and 52.80 is: 79.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.10 : 144.23 = 52.80 : x
  2. Step 2: Convert to fraction form
    96.10/144.23 = 52.80/x
  3. Step 3: Cross multiply
    96.10x = 144.23 × 52.80
  4. Step 4: Simplify right side
    96.10x = 7,615.34
  5. Step 5: Solve for x
    x = 7,615.34/96.10
  6. Step 6: Final answer
    x = 79.24

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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.