Home / 66,520.40-99,747.30-22,131.68

Finding the Fourth Proportional to 66,520.40, 99,747.30 and 22,131.68

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Solution

The fourth proportional to 66,520.40, 99,747.30 and 22,131.68 is: 33,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.40 : 99,747.30 = 22,131.68 : x
  2. Step 2: Convert to fraction form
    66,520.40/99,747.30 = 22,131.68/x
  3. Step 3: Cross multiply
    66,520.40x = 99,747.30 × 22,131.68
  4. Step 4: Simplify right side
    66,520.40x = 2,207,575,324.46
  5. Step 5: Solve for x
    x = 2,207,575,324.46/66,520.40
  6. Step 6: Final answer
    x = 33,186.44

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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.