Home / 49,121.66-73,620.45-21,008.30

Finding the Fourth Proportional to 49,121.66, 73,620.45 and 21,008.30

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Solution

The fourth proportional to 49,121.66, 73,620.45 and 21,008.30 is: 31,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,121.66 : 73,620.45 = 21,008.30 : x
  2. Step 2: Convert to fraction form
    49,121.66/73,620.45 = 21,008.30/x
  3. Step 3: Cross multiply
    49,121.66x = 73,620.45 × 21,008.30
  4. Step 4: Simplify right side
    49,121.66x = 1,546,640,499.74
  5. Step 5: Solve for x
    x = 1,546,640,499.74/49,121.66
  6. Step 6: Final answer
    x = 31,485.92

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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.