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Finding the Fourth Proportional to 69,713.36, 104,569.79 and 19,793.48

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Solution

The fourth proportional to 69,713.36, 104,569.79 and 19,793.48 is: 29,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,713.36 : 104,569.79 = 19,793.48 : x
  2. Step 2: Convert to fraction form
    69,713.36/104,569.79 = 19,793.48/x
  3. Step 3: Cross multiply
    69,713.36x = 104,569.79 × 19,793.48
  4. Step 4: Simplify right side
    69,713.36x = 2,069,799,425.15
  5. Step 5: Solve for x
    x = 2,069,799,425.15/69,713.36
  6. Step 6: Final answer
    x = 29,690.14

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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.