Home / 77,218.09-115,747.83-43,866.94

Finding the Fourth Proportional to 77,218.09, 115,747.83 and 43,866.94

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Solution

The fourth proportional to 77,218.09, 115,747.83 and 43,866.94 is: 65,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,218.09 : 115,747.83 = 43,866.94 : x
  2. Step 2: Convert to fraction form
    77,218.09/115,747.83 = 43,866.94/x
  3. Step 3: Cross multiply
    77,218.09x = 115,747.83 × 43,866.94
  4. Step 4: Simplify right side
    77,218.09x = 5,077,503,113.74
  5. Step 5: Solve for x
    x = 5,077,503,113.74/77,218.09
  6. Step 6: Final answer
    x = 65,755.36

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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.