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Finding the Fourth Proportional to 69,388.60, 104,083.16 and 16,798

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Solution

The fourth proportional to 69,388.60, 104,083.16 and 16,798 is: 25,197.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,388.60 : 104,083.16 = 16,798 : x
  2. Step 2: Convert to fraction form
    69,388.60/104,083.16 = 16,798/x
  3. Step 3: Cross multiply
    69,388.60x = 104,083.16 × 16,798
  4. Step 4: Simplify right side
    69,388.60x = 1,748,388,921.68
  5. Step 5: Solve for x
    x = 1,748,388,921.68/69,388.60
  6. Step 6: Final answer
    x = 25,197.06

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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.