Home / 51,729.90-71,374.67-31,579.44

Finding the Fourth Proportional to 51,729.90, 71,374.67 and 31,579.44

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Solution

The fourth proportional to 51,729.90, 71,374.67 and 31,579.44 is: 43,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,729.90 : 71,374.67 = 31,579.44 : x
  2. Step 2: Convert to fraction form
    51,729.90/71,374.67 = 31,579.44/x
  3. Step 3: Cross multiply
    51,729.90x = 71,374.67 × 31,579.44
  4. Step 4: Simplify right side
    51,729.90x = 2,253,972,108.78
  5. Step 5: Solve for x
    x = 2,253,972,108.78/51,729.90
  6. Step 6: Final answer
    x = 43,571.94

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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.