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Finding the Fourth Proportional to 66,865.92, 100,299 and 16,946

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Solution

The fourth proportional to 66,865.92, 100,299 and 16,946 is: 25,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,865.92 : 100,299 = 16,946 : x
  2. Step 2: Convert to fraction form
    66,865.92/100,299 = 16,946/x
  3. Step 3: Cross multiply
    66,865.92x = 100,299 × 16,946
  4. Step 4: Simplify right side
    66,865.92x = 1,699,666,854
  5. Step 5: Solve for x
    x = 1,699,666,854/66,865.92
  6. Step 6: Final answer
    x = 25,419.03

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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.