Home / 51,581.90-71,195.68-31,449.88

Finding the Fourth Proportional to 51,581.90, 71,195.68 and 31,449.88

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Solution

The fourth proportional to 51,581.90, 71,195.68 and 31,449.88 is: 43,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,581.90 : 71,195.68 = 31,449.88 : x
  2. Step 2: Convert to fraction form
    51,581.90/71,195.68 = 31,449.88/x
  3. Step 3: Cross multiply
    51,581.90x = 71,195.68 × 31,449.88
  4. Step 4: Simplify right side
    51,581.90x = 2,239,095,143.44
  5. Step 5: Solve for x
    x = 2,239,095,143.44/51,581.90
  6. Step 6: Final answer
    x = 43,408.54

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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.