Home / 77,729.06-107,263.76-43,739.44

Finding the Fourth Proportional to 77,729.06, 107,263.76 and 43,739.44

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Solution

The fourth proportional to 77,729.06, 107,263.76 and 43,739.44 is: 60,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.06 : 107,263.76 = 43,739.44 : x
  2. Step 2: Convert to fraction form
    77,729.06/107,263.76 = 43,739.44/x
  3. Step 3: Cross multiply
    77,729.06x = 107,263.76 × 43,739.44
  4. Step 4: Simplify right side
    77,729.06x = 4,691,656,794.69
  5. Step 5: Solve for x
    x = 4,691,656,794.69/77,729.06
  6. Step 6: Final answer
    x = 60,359.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.