Home / 77,175.10-115,732.07-32,803.30

Finding the Fourth Proportional to 77,175.10, 115,732.07 and 32,803.30

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Solution

The fourth proportional to 77,175.10, 115,732.07 and 32,803.30 is: 49,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,175.10 : 115,732.07 = 32,803.30 : x
  2. Step 2: Convert to fraction form
    77,175.10/115,732.07 = 32,803.30/x
  3. Step 3: Cross multiply
    77,175.10x = 115,732.07 × 32,803.30
  4. Step 4: Simplify right side
    77,175.10x = 3,796,393,811.83
  5. Step 5: Solve for x
    x = 3,796,393,811.83/77,175.10
  6. Step 6: Final answer
    x = 49,191.95

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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.