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Finding the Fourth Proportional to 69,099, 103,644.38 and 40,651.94

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Solution

The fourth proportional to 69,099, 103,644.38 and 40,651.94 is: 60,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,099 : 103,644.38 = 40,651.94 : x
  2. Step 2: Convert to fraction form
    69,099/103,644.38 = 40,651.94/x
  3. Step 3: Cross multiply
    69,099x = 103,644.38 × 40,651.94
  4. Step 4: Simplify right side
    69,099x = 4,213,344,700.51
  5. Step 5: Solve for x
    x = 4,213,344,700.51/69,099
  6. Step 6: Final answer
    x = 60,975.48

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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.