Home / 87,917.07-121,325.63-51,611.41

Finding the Fourth Proportional to 87,917.07, 121,325.63 and 51,611.41

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Solution

The fourth proportional to 87,917.07, 121,325.63 and 51,611.41 is: 71,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.07 : 121,325.63 = 51,611.41 : x
  2. Step 2: Convert to fraction form
    87,917.07/121,325.63 = 51,611.41/x
  3. Step 3: Cross multiply
    87,917.07x = 121,325.63 × 51,611.41
  4. Step 4: Simplify right side
    87,917.07x = 6,261,786,272.07
  5. Step 5: Solve for x
    x = 6,261,786,272.07/87,917.07
  6. Step 6: Final answer
    x = 71,223.78

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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.