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Finding the Fourth Proportional to 66,022.43, 99,047.43 and 21,645.68

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Solution

The fourth proportional to 66,022.43, 99,047.43 and 21,645.68 is: 32,473.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,022.43 : 99,047.43 = 21,645.68 : x
  2. Step 2: Convert to fraction form
    66,022.43/99,047.43 = 21,645.68/x
  3. Step 3: Cross multiply
    66,022.43x = 99,047.43 × 21,645.68
  4. Step 4: Simplify right side
    66,022.43x = 2,143,948,479.37
  5. Step 5: Solve for x
    x = 2,143,948,479.37/66,022.43
  6. Step 6: Final answer
    x = 32,473.03

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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.