Home / 69,701.70-104,556.56-19,777.89

Finding the Fourth Proportional to 69,701.70, 104,556.56 and 19,777.89

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Solution

The fourth proportional to 69,701.70, 104,556.56 and 19,777.89 is: 29,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,701.70 : 104,556.56 = 19,777.89 : x
  2. Step 2: Convert to fraction form
    69,701.70/104,556.56 = 19,777.89/x
  3. Step 3: Cross multiply
    69,701.70x = 104,556.56 × 19,777.89
  4. Step 4: Simplify right side
    69,701.70x = 2,067,908,043.57
  5. Step 5: Solve for x
    x = 2,067,908,043.57/69,701.70
  6. Step 6: Final answer
    x = 29,667.97

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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.