Home / 45,418.53-68,110.52-20,777.25

Finding the Fourth Proportional to 45,418.53, 68,110.52 and 20,777.25

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Solution

The fourth proportional to 45,418.53, 68,110.52 and 20,777.25 is: 31,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.53 : 68,110.52 = 20,777.25 : x
  2. Step 2: Convert to fraction form
    45,418.53/68,110.52 = 20,777.25/x
  3. Step 3: Cross multiply
    45,418.53x = 68,110.52 × 20,777.25
  4. Step 4: Simplify right side
    45,418.53x = 1,415,149,197.78
  5. Step 5: Solve for x
    x = 1,415,149,197.78/45,418.53
  6. Step 6: Final answer
    x = 31,157.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.