Home / 77,270.20-115,811.70-32,803.60

Finding the Fourth Proportional to 77,270.20, 115,811.70 and 32,803.60

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Solution

The fourth proportional to 77,270.20, 115,811.70 and 32,803.60 is: 49,165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,270.20 : 115,811.70 = 32,803.60 : x
  2. Step 2: Convert to fraction form
    77,270.20/115,811.70 = 32,803.60/x
  3. Step 3: Cross multiply
    77,270.20x = 115,811.70 × 32,803.60
  4. Step 4: Simplify right side
    77,270.20x = 3,799,040,682.12
  5. Step 5: Solve for x
    x = 3,799,040,682.12/77,270.20
  6. Step 6: Final answer
    x = 49,165.66

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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.