Home / 51,051.43-76,499.18-21,453.09

Finding the Fourth Proportional to 51,051.43, 76,499.18 and 21,453.09

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Solution

The fourth proportional to 51,051.43, 76,499.18 and 21,453.09 is: 32,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051.43 : 76,499.18 = 21,453.09 : x
  2. Step 2: Convert to fraction form
    51,051.43/76,499.18 = 21,453.09/x
  3. Step 3: Cross multiply
    51,051.43x = 76,499.18 × 21,453.09
  4. Step 4: Simplify right side
    51,051.43x = 1,641,143,793.47
  5. Step 5: Solve for x
    x = 1,641,143,793.47/51,051.43
  6. Step 6: Final answer
    x = 32,146.87

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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.