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Finding the Fourth Proportional to 66,658.11, 100,027.50 and 29,220.33

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Solution

The fourth proportional to 66,658.11, 100,027.50 and 29,220.33 is: 43,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,658.11 : 100,027.50 = 29,220.33 : x
  2. Step 2: Convert to fraction form
    66,658.11/100,027.50 = 29,220.33/x
  3. Step 3: Cross multiply
    66,658.11x = 100,027.50 × 29,220.33
  4. Step 4: Simplify right side
    66,658.11x = 2,922,836,559.08
  5. Step 5: Solve for x
    x = 2,922,836,559.08/66,658.11
  6. Step 6: Final answer
    x = 43,848.18

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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.