Home / 87,628.30-120,927.82-49,380.52

Finding the Fourth Proportional to 87,628.30, 120,927.82 and 49,380.52

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Solution

The fourth proportional to 87,628.30, 120,927.82 and 49,380.52 is: 68,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.30 : 120,927.82 = 49,380.52 : x
  2. Step 2: Convert to fraction form
    87,628.30/120,927.82 = 49,380.52/x
  3. Step 3: Cross multiply
    87,628.30x = 120,927.82 × 49,380.52
  4. Step 4: Simplify right side
    87,628.30x = 5,971,478,634.07
  5. Step 5: Solve for x
    x = 5,971,478,634.07/87,628.30
  6. Step 6: Final answer
    x = 68,145.55

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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.