Home / 69,755.28-104,663.85-39,768.42

Finding the Fourth Proportional to 69,755.28, 104,663.85 and 39,768.42

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Solution

The fourth proportional to 69,755.28, 104,663.85 and 39,768.42 is: 59,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,755.28 : 104,663.85 = 39,768.42 : x
  2. Step 2: Convert to fraction form
    69,755.28/104,663.85 = 39,768.42/x
  3. Step 3: Cross multiply
    69,755.28x = 104,663.85 × 39,768.42
  4. Step 4: Simplify right side
    69,755.28x = 4,162,315,945.62
  5. Step 5: Solve for x
    x = 4,162,315,945.62/69,755.28
  6. Step 6: Final answer
    x = 59,670.26

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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.