Home / 49,121.16-73,619.70-21,007.80

Finding the Fourth Proportional to 49,121.16, 73,619.70 and 21,007.80

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Solution

The fourth proportional to 49,121.16, 73,619.70 and 21,007.80 is: 31,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,121.16 : 73,619.70 = 21,007.80 : x
  2. Step 2: Convert to fraction form
    49,121.16/73,619.70 = 21,007.80/x
  3. Step 3: Cross multiply
    49,121.16x = 73,619.70 × 21,007.80
  4. Step 4: Simplify right side
    49,121.16x = 1,546,587,933.66
  5. Step 5: Solve for x
    x = 1,546,587,933.66/49,121.16
  6. Step 6: Final answer
    x = 31,485.17

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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.