Home / 57,738.50-79,679.38-31,242.50

Finding the Fourth Proportional to 57,738.50, 79,679.38 and 31,242.50

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Solution

The fourth proportional to 57,738.50, 79,679.38 and 31,242.50 is: 43,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,738.50 : 79,679.38 = 31,242.50 : x
  2. Step 2: Convert to fraction form
    57,738.50/79,679.38 = 31,242.50/x
  3. Step 3: Cross multiply
    57,738.50x = 79,679.38 × 31,242.50
  4. Step 4: Simplify right side
    57,738.50x = 2,489,383,029.65
  5. Step 5: Solve for x
    x = 2,489,383,029.65/57,738.50
  6. Step 6: Final answer
    x = 43,114.79

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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.