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Finding the Fourth Proportional to 69,174.37, 103,745.95 and 45,151.11

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Solution

The fourth proportional to 69,174.37, 103,745.95 and 45,151.11 is: 67,716.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,174.37 : 103,745.95 = 45,151.11 : x
  2. Step 2: Convert to fraction form
    69,174.37/103,745.95 = 45,151.11/x
  3. Step 3: Cross multiply
    69,174.37x = 103,745.95 × 45,151.11
  4. Step 4: Simplify right side
    69,174.37x = 4,684,244,800.50
  5. Step 5: Solve for x
    x = 4,684,244,800.50/69,174.37
  6. Step 6: Final answer
    x = 67,716.48

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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.