Home / 57,987.88-79,845.33-50,776.54

Finding the Fourth Proportional to 57,987.88, 79,845.33 and 50,776.54

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Solution

The fourth proportional to 57,987.88, 79,845.33 and 50,776.54 is: 69,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,987.88 : 79,845.33 = 50,776.54 : x
  2. Step 2: Convert to fraction form
    57,987.88/79,845.33 = 50,776.54/x
  3. Step 3: Cross multiply
    57,987.88x = 79,845.33 × 50,776.54
  4. Step 4: Simplify right side
    57,987.88x = 4,054,269,592.56
  5. Step 5: Solve for x
    x = 4,054,269,592.56/57,987.88
  6. Step 6: Final answer
    x = 69,915.81

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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.