Home / 76,627.20-115,016.64-62,751.84

Finding the Fourth Proportional to 76,627.20, 115,016.64 and 62,751.84

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Solution

The fourth proportional to 76,627.20, 115,016.64 and 62,751.84 is: 94,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,627.20 : 115,016.64 = 62,751.84 : x
  2. Step 2: Convert to fraction form
    76,627.20/115,016.64 = 62,751.84/x
  3. Step 3: Cross multiply
    76,627.20x = 115,016.64 × 62,751.84
  4. Step 4: Simplify right side
    76,627.20x = 7,217,505,790.62
  5. Step 5: Solve for x
    x = 7,217,505,790.62/76,627.20
  6. Step 6: Final answer
    x = 94,189.87

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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.