Home / 91,996.20-137,994.30-50,005.80

Finding the Fourth Proportional to 91,996.20, 137,994.30 and 50,005.80

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Solution

The fourth proportional to 91,996.20, 137,994.30 and 50,005.80 is: 75,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,996.20 : 137,994.30 = 50,005.80 : x
  2. Step 2: Convert to fraction form
    91,996.20/137,994.30 = 50,005.80/x
  3. Step 3: Cross multiply
    91,996.20x = 137,994.30 × 50,005.80
  4. Step 4: Simplify right side
    91,996.20x = 6,900,515,366.94
  5. Step 5: Solve for x
    x = 6,900,515,366.94/91,996.20
  6. Step 6: Final answer
    x = 75,008.70

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1.5x scale

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.