Home / 77,205.14-115,729.03-32,803.57

Finding the Fourth Proportional to 77,205.14, 115,729.03 and 32,803.57

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Solution

The fourth proportional to 77,205.14, 115,729.03 and 32,803.57 is: 49,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,205.14 : 115,729.03 = 32,803.57 : x
  2. Step 2: Convert to fraction form
    77,205.14/115,729.03 = 32,803.57/x
  3. Step 3: Cross multiply
    77,205.14x = 115,729.03 × 32,803.57
  4. Step 4: Simplify right side
    77,205.14x = 3,796,325,336.64
  5. Step 5: Solve for x
    x = 3,796,325,336.64/77,205.14
  6. Step 6: Final answer
    x = 49,171.92

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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.