Home / 45,198.32-67,709.20-21,472.08

Finding the Fourth Proportional to 45,198.32, 67,709.20 and 21,472.08

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Solution

The fourth proportional to 45,198.32, 67,709.20 and 21,472.08 is: 32,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,198.32 : 67,709.20 = 21,472.08 : x
  2. Step 2: Convert to fraction form
    45,198.32/67,709.20 = 21,472.08/x
  3. Step 3: Cross multiply
    45,198.32x = 67,709.20 × 21,472.08
  4. Step 4: Simplify right side
    45,198.32x = 1,453,857,359.14
  5. Step 5: Solve for x
    x = 1,453,857,359.14/45,198.32
  6. Step 6: Final answer
    x = 32,166.18

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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.