Home / 66,042.20-99,077.88-32,780.36

Finding the Fourth Proportional to 66,042.20, 99,077.88 and 32,780.36

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Solution

The fourth proportional to 66,042.20, 99,077.88 and 32,780.36 is: 49,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,042.20 : 99,077.88 = 32,780.36 : x
  2. Step 2: Convert to fraction form
    66,042.20/99,077.88 = 32,780.36/x
  3. Step 3: Cross multiply
    66,042.20x = 99,077.88 × 32,780.36
  4. Step 4: Simplify right side
    66,042.20x = 3,247,808,574.44
  5. Step 5: Solve for x
    x = 3,247,808,574.44/66,042.20
  6. Step 6: Final answer
    x = 49,177.78

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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.