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Finding the Fourth Proportional to 95.76, 143.75 and 50.19

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Solution

The fourth proportional to 95.76, 143.75 and 50.19 is: 75.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.76 : 143.75 = 50.19 : x
  2. Step 2: Convert to fraction form
    95.76/143.75 = 50.19/x
  3. Step 3: Cross multiply
    95.76x = 143.75 × 50.19
  4. Step 4: Simplify right side
    95.76x = 7,215.47
  5. Step 5: Solve for x
    x = 7,215.47/95.76
  6. Step 6: Final answer
    x = 75.35

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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.