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Finding the Fourth Proportional to 69,666.99, 104,500.30 and 19,747.52

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Solution

The fourth proportional to 69,666.99, 104,500.30 and 19,747.52 is: 29,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,666.99 : 104,500.30 = 19,747.52 : x
  2. Step 2: Convert to fraction form
    69,666.99/104,500.30 = 19,747.52/x
  3. Step 3: Cross multiply
    69,666.99x = 104,500.30 × 19,747.52
  4. Step 4: Simplify right side
    69,666.99x = 2,063,621,764.26
  5. Step 5: Solve for x
    x = 2,063,621,764.26/69,666.99
  6. Step 6: Final answer
    x = 29,621.23

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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.