Home / 87,758.21-121,067.86-51,441.25

Finding the Fourth Proportional to 87,758.21, 121,067.86 and 51,441.25

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Solution

The fourth proportional to 87,758.21, 121,067.86 and 51,441.25 is: 70,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,758.21 : 121,067.86 = 51,441.25 : x
  2. Step 2: Convert to fraction form
    87,758.21/121,067.86 = 51,441.25/x
  3. Step 3: Cross multiply
    87,758.21x = 121,067.86 × 51,441.25
  4. Step 4: Simplify right side
    87,758.21x = 6,227,882,053.23
  5. Step 5: Solve for x
    x = 6,227,882,053.23/87,758.21
  6. Step 6: Final answer
    x = 70,966.38

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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.