Home / 66,891.21-100,351.61-22,516.50

Finding the Fourth Proportional to 66,891.21, 100,351.61 and 22,516.50

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Solution

The fourth proportional to 66,891.21, 100,351.61 and 22,516.50 is: 33,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891.21 : 100,351.61 = 22,516.50 : x
  2. Step 2: Convert to fraction form
    66,891.21/100,351.61 = 22,516.50/x
  3. Step 3: Cross multiply
    66,891.21x = 100,351.61 × 22,516.50
  4. Step 4: Simplify right side
    66,891.21x = 2,259,566,913.98
  5. Step 5: Solve for x
    x = 2,259,566,913.98/66,891.21
  6. Step 6: Final answer
    x = 33,779.73

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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.