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Finding the Fourth Proportional to 77.89, 116.83 and 37.29

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Solution

The fourth proportional to 77.89, 116.83 and 37.29 is: 55.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77.89 : 116.83 = 37.29 : x
  2. Step 2: Convert to fraction form
    77.89/116.83 = 37.29/x
  3. Step 3: Cross multiply
    77.89x = 116.83 × 37.29
  4. Step 4: Simplify right side
    77.89x = 4,356.59
  5. Step 5: Solve for x
    x = 4,356.59/77.89
  6. Step 6: Final answer
    x = 55.93

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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.