Home / 51,180.67-76,814.14-21,619.72

Finding the Fourth Proportional to 51,180.67, 76,814.14 and 21,619.72

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Solution

The fourth proportional to 51,180.67, 76,814.14 and 21,619.72 is: 32,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.67 : 76,814.14 = 21,619.72 : x
  2. Step 2: Convert to fraction form
    51,180.67/76,814.14 = 21,619.72/x
  3. Step 3: Cross multiply
    51,180.67x = 76,814.14 × 21,619.72
  4. Step 4: Simplify right side
    51,180.67x = 1,660,700,321.88
  5. Step 5: Solve for x
    x = 1,660,700,321.88/51,180.67
  6. Step 6: Final answer
    x = 32,447.80

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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.