Home / 87,735.42-121,067.46-51,919.11

Finding the Fourth Proportional to 87,735.42, 121,067.46 and 51,919.11

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Solution

The fourth proportional to 87,735.42, 121,067.46 and 51,919.11 is: 71,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.42 : 121,067.46 = 51,919.11 : x
  2. Step 2: Convert to fraction form
    87,735.42/121,067.46 = 51,919.11/x
  3. Step 3: Cross multiply
    87,735.42x = 121,067.46 × 51,919.11
  4. Step 4: Simplify right side
    87,735.42x = 6,285,714,773.16
  5. Step 5: Solve for x
    x = 6,285,714,773.16/87,735.42
  6. Step 6: Final answer
    x = 71,643.98

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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.