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Finding the Fourth Proportional to 66,889.67, 100,349.85 and 22,515.23

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Solution

The fourth proportional to 66,889.67, 100,349.85 and 22,515.23 is: 33,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889.67 : 100,349.85 = 22,515.23 : x
  2. Step 2: Convert to fraction form
    66,889.67/100,349.85 = 22,515.23/x
  3. Step 3: Cross multiply
    66,889.67x = 100,349.85 × 22,515.23
  4. Step 4: Simplify right side
    66,889.67x = 2,259,400,288.52
  5. Step 5: Solve for x
    x = 2,259,400,288.52/66,889.67
  6. Step 6: Final answer
    x = 33,778.02

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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.