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Finding the Fourth Proportional to 65,174.67, 89,942.94 and 36,879.75

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Solution

The fourth proportional to 65,174.67, 89,942.94 and 36,879.75 is: 50,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,174.67 : 89,942.94 = 36,879.75 : x
  2. Step 2: Convert to fraction form
    65,174.67/89,942.94 = 36,879.75/x
  3. Step 3: Cross multiply
    65,174.67x = 89,942.94 × 36,879.75
  4. Step 4: Simplify right side
    65,174.67x = 3,317,073,141.47
  5. Step 5: Solve for x
    x = 3,317,073,141.47/65,174.67
  6. Step 6: Final answer
    x = 50,895.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.