Home / 87,933.52-121,403.64-61,067.44

Finding the Fourth Proportional to 87,933.52, 121,403.64 and 61,067.44

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Solution

The fourth proportional to 87,933.52, 121,403.64 and 61,067.44 is: 84,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,933.52 : 121,403.64 = 61,067.44 : x
  2. Step 2: Convert to fraction form
    87,933.52/121,403.64 = 61,067.44/x
  3. Step 3: Cross multiply
    87,933.52x = 121,403.64 × 61,067.44
  4. Step 4: Simplify right side
    87,933.52x = 7,413,809,501.48
  5. Step 5: Solve for x
    x = 7,413,809,501.48/87,933.52
  6. Step 6: Final answer
    x = 84,311.53

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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.