Home / 69,821.76-104,749.05-19,902.58

Finding the Fourth Proportional to 69,821.76, 104,749.05 and 19,902.58

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Solution

The fourth proportional to 69,821.76, 104,749.05 and 19,902.58 is: 29,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,821.76 : 104,749.05 = 19,902.58 : x
  2. Step 2: Convert to fraction form
    69,821.76/104,749.05 = 19,902.58/x
  3. Step 3: Cross multiply
    69,821.76x = 104,749.05 × 19,902.58
  4. Step 4: Simplify right side
    69,821.76x = 2,084,776,048.36
  5. Step 5: Solve for x
    x = 2,084,776,048.36/69,821.76
  6. Step 6: Final answer
    x = 29,858.54

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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.