Home / 49,976.14-74,964.22-20,407.90

Finding the Fourth Proportional to 49,976.14, 74,964.22 and 20,407.90

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Solution

The fourth proportional to 49,976.14, 74,964.22 and 20,407.90 is: 30,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,976.14 : 74,964.22 = 20,407.90 : x
  2. Step 2: Convert to fraction form
    49,976.14/74,964.22 = 20,407.90/x
  3. Step 3: Cross multiply
    49,976.14x = 74,964.22 × 20,407.90
  4. Step 4: Simplify right side
    49,976.14x = 1,529,862,305.34
  5. Step 5: Solve for x
    x = 1,529,862,305.34/49,976.14
  6. Step 6: Final answer
    x = 30,611.85

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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.