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Finding the Fourth Proportional to 66,664.23, 100,001.66 and 22,291.21

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Solution

The fourth proportional to 66,664.23, 100,001.66 and 22,291.21 is: 33,438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,664.23 : 100,001.66 = 22,291.21 : x
  2. Step 2: Convert to fraction form
    66,664.23/100,001.66 = 22,291.21/x
  3. Step 3: Cross multiply
    66,664.23x = 100,001.66 × 22,291.21
  4. Step 4: Simplify right side
    66,664.23x = 2,229,158,003.41
  5. Step 5: Solve for x
    x = 2,229,158,003.41/66,664.23
  6. Step 6: Final answer
    x = 33,438.59

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1.5x scale

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.