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Finding the Fourth Proportional to 69,673.10, 104,509.65 and 50,135.90

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Solution

The fourth proportional to 69,673.10, 104,509.65 and 50,135.90 is: 75,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,673.10 : 104,509.65 = 50,135.90 : x
  2. Step 2: Convert to fraction form
    69,673.10/104,509.65 = 50,135.90/x
  3. Step 3: Cross multiply
    69,673.10x = 104,509.65 × 50,135.90
  4. Step 4: Simplify right side
    69,673.10x = 5,239,685,361.44
  5. Step 5: Solve for x
    x = 5,239,685,361.44/69,673.10
  6. Step 6: Final answer
    x = 75,203.85

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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.