Home / 71,819.56-107,725.29-31,827.03

Finding the Fourth Proportional to 71,819.56, 107,725.29 and 31,827.03

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Solution

The fourth proportional to 71,819.56, 107,725.29 and 31,827.03 is: 47,738.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,819.56 : 107,725.29 = 31,827.03 : x
  2. Step 2: Convert to fraction form
    71,819.56/107,725.29 = 31,827.03/x
  3. Step 3: Cross multiply
    71,819.56x = 107,725.29 × 31,827.03
  4. Step 4: Simplify right side
    71,819.56x = 3,428,575,632.62
  5. Step 5: Solve for x
    x = 3,428,575,632.62/71,819.56
  6. Step 6: Final answer
    x = 47,738.74

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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.