Home / 66,512.52-99,780.94-22,135.08

Finding the Fourth Proportional to 66,512.52, 99,780.94 and 22,135.08

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Solution

The fourth proportional to 66,512.52, 99,780.94 and 22,135.08 is: 33,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.52 : 99,780.94 = 22,135.08 : x
  2. Step 2: Convert to fraction form
    66,512.52/99,780.94 = 22,135.08/x
  3. Step 3: Cross multiply
    66,512.52x = 99,780.94 × 22,135.08
  4. Step 4: Simplify right side
    66,512.52x = 2,208,659,089.38
  5. Step 5: Solve for x
    x = 2,208,659,089.38/66,512.52
  6. Step 6: Final answer
    x = 33,206.67

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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.