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Finding the Fourth Proportional to 69,773.36, 104,664.80 and 19,857.36

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Solution

The fourth proportional to 69,773.36, 104,664.80 and 19,857.36 is: 29,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,773.36 : 104,664.80 = 19,857.36 : x
  2. Step 2: Convert to fraction form
    69,773.36/104,664.80 = 19,857.36/x
  3. Step 3: Cross multiply
    69,773.36x = 104,664.80 × 19,857.36
  4. Step 4: Simplify right side
    69,773.36x = 2,078,366,612.93
  5. Step 5: Solve for x
    x = 2,078,366,612.93/69,773.36
  6. Step 6: Final answer
    x = 29,787.39

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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.