Home / 69,845.35-104,796.09-31,912.60

Finding the Fourth Proportional to 69,845.35, 104,796.09 and 31,912.60

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Solution

The fourth proportional to 69,845.35, 104,796.09 and 31,912.60 is: 47,881.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,845.35 : 104,796.09 = 31,912.60 : x
  2. Step 2: Convert to fraction form
    69,845.35/104,796.09 = 31,912.60/x
  3. Step 3: Cross multiply
    69,845.35x = 104,796.09 × 31,912.60
  4. Step 4: Simplify right side
    69,845.35x = 3,344,315,542.17
  5. Step 5: Solve for x
    x = 3,344,315,542.17/69,845.35
  6. Step 6: Final answer
    x = 47,881.72

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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.