Home / 49,992.77-74,989.23-20,020.50

Finding the Fourth Proportional to 49,992.77, 74,989.23 and 20,020.50

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Solution

The fourth proportional to 49,992.77, 74,989.23 and 20,020.50 is: 30,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,992.77 : 74,989.23 = 20,020.50 : x
  2. Step 2: Convert to fraction form
    49,992.77/74,989.23 = 20,020.50/x
  3. Step 3: Cross multiply
    49,992.77x = 74,989.23 × 20,020.50
  4. Step 4: Simplify right side
    49,992.77x = 1,501,321,879.22
  5. Step 5: Solve for x
    x = 1,501,321,879.22/49,992.77
  6. Step 6: Final answer
    x = 30,030.78

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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.