Home / 51,010.79-76,504.03-21,429.20

Finding the Fourth Proportional to 51,010.79, 76,504.03 and 21,429.20

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Solution

The fourth proportional to 51,010.79, 76,504.03 and 21,429.20 is: 32,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,010.79 : 76,504.03 = 21,429.20 : x
  2. Step 2: Convert to fraction form
    51,010.79/76,504.03 = 21,429.20/x
  3. Step 3: Cross multiply
    51,010.79x = 76,504.03 × 21,429.20
  4. Step 4: Simplify right side
    51,010.79x = 1,639,419,723.58
  5. Step 5: Solve for x
    x = 1,639,419,723.58/51,010.79
  6. Step 6: Final answer
    x = 32,138.69

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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.