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Finding the Fourth Proportional to 66,726.96, 100,086.88 and 16,807

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Solution

The fourth proportional to 66,726.96, 100,086.88 and 16,807 is: 25,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726.96 : 100,086.88 = 16,807 : x
  2. Step 2: Convert to fraction form
    66,726.96/100,086.88 = 16,807/x
  3. Step 3: Cross multiply
    66,726.96x = 100,086.88 × 16,807
  4. Step 4: Simplify right side
    66,726.96x = 1,682,160,192.16
  5. Step 5: Solve for x
    x = 1,682,160,192.16/66,726.96
  6. Step 6: Final answer
    x = 25,209.60

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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.