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Finding the Fourth Proportional to 65,850.99, 90,874.01 and 35,636.30

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Solution

The fourth proportional to 65,850.99, 90,874.01 and 35,636.30 is: 49,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.99 : 90,874.01 = 35,636.30 : x
  2. Step 2: Convert to fraction form
    65,850.99/90,874.01 = 35,636.30/x
  3. Step 3: Cross multiply
    65,850.99x = 90,874.01 × 35,636.30
  4. Step 4: Simplify right side
    65,850.99x = 3,238,413,620.66
  5. Step 5: Solve for x
    x = 3,238,413,620.66/65,850.99
  6. Step 6: Final answer
    x = 49,177.90

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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.