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Finding the Fourth Proportional to 66,546, 99,819 and 17,298

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Solution

The fourth proportional to 66,546, 99,819 and 17,298 is: 25,947

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546 : 99,819 = 17,298 : x
  2. Step 2: Convert to fraction form
    66,546/99,819 = 17,298/x
  3. Step 3: Cross multiply
    66,546x = 99,819 × 17,298
  4. Step 4: Simplify right side
    66,546x = 1,726,669,062
  5. Step 5: Solve for x
    x = 1,726,669,062/66,546
  6. Step 6: Final answer
    x = 25,947

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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.