Home / 51,422.69-70,958.41-28,761.11

Finding the Fourth Proportional to 51,422.69, 70,958.41 and 28,761.11

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Solution

The fourth proportional to 51,422.69, 70,958.41 and 28,761.11 is: 39,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,422.69 : 70,958.41 = 28,761.11 : x
  2. Step 2: Convert to fraction form
    51,422.69/70,958.41 = 28,761.11/x
  3. Step 3: Cross multiply
    51,422.69x = 70,958.41 × 28,761.11
  4. Step 4: Simplify right side
    51,422.69x = 2,040,842,635.44
  5. Step 5: Solve for x
    x = 2,040,842,635.44/51,422.69
  6. Step 6: Final answer
    x = 39,687.59

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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.