Home / 76,966.80-115,400.43-50,591.58

Finding the Fourth Proportional to 76,966.80, 115,400.43 and 50,591.58

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Solution

The fourth proportional to 76,966.80, 115,400.43 and 50,591.58 is: 75,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966.80 : 115,400.43 = 50,591.58 : x
  2. Step 2: Convert to fraction form
    76,966.80/115,400.43 = 50,591.58/x
  3. Step 3: Cross multiply
    76,966.80x = 115,400.43 × 50,591.58
  4. Step 4: Simplify right side
    76,966.80x = 5,838,290,086.38
  5. Step 5: Solve for x
    x = 5,838,290,086.38/76,966.80
  6. Step 6: Final answer
    x = 75,854.66

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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.