Home / 77,629.36-107,127.60-43,643.52

Finding the Fourth Proportional to 77,629.36, 107,127.60 and 43,643.52

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Solution

The fourth proportional to 77,629.36, 107,127.60 and 43,643.52 is: 60,227.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,629.36 : 107,127.60 = 43,643.52 : x
  2. Step 2: Convert to fraction form
    77,629.36/107,127.60 = 43,643.52/x
  3. Step 3: Cross multiply
    77,629.36x = 107,127.60 × 43,643.52
  4. Step 4: Simplify right side
    77,629.36x = 4,675,425,553.15
  5. Step 5: Solve for x
    x = 4,675,425,553.15/77,629.36
  6. Step 6: Final answer
    x = 60,227.54

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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.