Home / 77,091.06-115,651.48-27,172.79

Finding the Fourth Proportional to 77,091.06, 115,651.48 and 27,172.79

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Solution

The fourth proportional to 77,091.06, 115,651.48 and 27,172.79 is: 40,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,091.06 : 115,651.48 = 27,172.79 : x
  2. Step 2: Convert to fraction form
    77,091.06/115,651.48 = 27,172.79/x
  3. Step 3: Cross multiply
    77,091.06x = 115,651.48 × 27,172.79
  4. Step 4: Simplify right side
    77,091.06x = 3,142,573,379.23
  5. Step 5: Solve for x
    x = 3,142,573,379.23/77,091.06
  6. Step 6: Final answer
    x = 40,764.43

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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.