Home / 87,786.51-121,145.22-49,554.09

Finding the Fourth Proportional to 87,786.51, 121,145.22 and 49,554.09

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Solution

The fourth proportional to 87,786.51, 121,145.22 and 49,554.09 is: 68,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.51 : 121,145.22 = 49,554.09 : x
  2. Step 2: Convert to fraction form
    87,786.51/121,145.22 = 49,554.09/x
  3. Step 3: Cross multiply
    87,786.51x = 121,145.22 × 49,554.09
  4. Step 4: Simplify right side
    87,786.51x = 6,003,241,134.95
  5. Step 5: Solve for x
    x = 6,003,241,134.95/87,786.51
  6. Step 6: Final answer
    x = 68,384.55

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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.