Home / 77,664.09-107,175.24-43,672.61

Finding the Fourth Proportional to 77,664.09, 107,175.24 and 43,672.61

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Solution

The fourth proportional to 77,664.09, 107,175.24 and 43,672.61 is: 60,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,664.09 : 107,175.24 = 43,672.61 : x
  2. Step 2: Convert to fraction form
    77,664.09/107,175.24 = 43,672.61/x
  3. Step 3: Cross multiply
    77,664.09x = 107,175.24 × 43,672.61
  4. Step 4: Simplify right side
    77,664.09x = 4,680,622,458.18
  5. Step 5: Solve for x
    x = 4,680,622,458.18/77,664.09
  6. Step 6: Final answer
    x = 60,267.52

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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.