Home / 51,900.78-71,628.38-31,770.96

Finding the Fourth Proportional to 51,900.78, 71,628.38 and 31,770.96

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Solution

The fourth proportional to 51,900.78, 71,628.38 and 31,770.96 is: 43,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,900.78 : 71,628.38 = 31,770.96 : x
  2. Step 2: Convert to fraction form
    51,900.78/71,628.38 = 31,770.96/x
  3. Step 3: Cross multiply
    51,900.78x = 71,628.38 × 31,770.96
  4. Step 4: Simplify right side
    51,900.78x = 2,275,702,236.99
  5. Step 5: Solve for x
    x = 2,275,702,236.99/51,900.78
  6. Step 6: Final answer
    x = 43,847.17

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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.