Home / 66,204.72-99,320.76-21,834.18

Finding the Fourth Proportional to 66,204.72, 99,320.76 and 21,834.18

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Solution

The fourth proportional to 66,204.72, 99,320.76 and 21,834.18 is: 32,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,204.72 : 99,320.76 = 21,834.18 : x
  2. Step 2: Convert to fraction form
    66,204.72/99,320.76 = 21,834.18/x
  3. Step 3: Cross multiply
    66,204.72x = 99,320.76 × 21,834.18
  4. Step 4: Simplify right side
    66,204.72x = 2,168,587,351.58
  5. Step 5: Solve for x
    x = 2,168,587,351.58/66,204.72
  6. Step 6: Final answer
    x = 32,755.78

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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.