Home / 51,915.05-71,644.19-31,771.56

Finding the Fourth Proportional to 51,915.05, 71,644.19 and 31,771.56

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Solution

The fourth proportional to 51,915.05, 71,644.19 and 31,771.56 is: 43,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,915.05 : 71,644.19 = 31,771.56 : x
  2. Step 2: Convert to fraction form
    51,915.05/71,644.19 = 31,771.56/x
  3. Step 3: Cross multiply
    51,915.05x = 71,644.19 × 31,771.56
  4. Step 4: Simplify right side
    51,915.05x = 2,276,247,681.24
  5. Step 5: Solve for x
    x = 2,276,247,681.24/51,915.05
  6. Step 6: Final answer
    x = 43,845.62

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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.