Home / 55,591.97-76,728.50-51,108.62

Finding the Fourth Proportional to 55,591.97, 76,728.50 and 51,108.62

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Solution

The fourth proportional to 55,591.97, 76,728.50 and 51,108.62 is: 70,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,591.97 : 76,728.50 = 51,108.62 : x
  2. Step 2: Convert to fraction form
    55,591.97/76,728.50 = 51,108.62/x
  3. Step 3: Cross multiply
    55,591.97x = 76,728.50 × 51,108.62
  4. Step 4: Simplify right side
    55,591.97x = 3,921,487,110.48
  5. Step 5: Solve for x
    x = 3,921,487,110.48/55,591.97
  6. Step 6: Final answer
    x = 70,540.54

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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.