Home / 49,992.79-74,989.11-20,020.53

Finding the Fourth Proportional to 49,992.79, 74,989.11 and 20,020.53

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Solution

The fourth proportional to 49,992.79, 74,989.11 and 20,020.53 is: 30,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,992.79 : 74,989.11 = 20,020.53 : x
  2. Step 2: Convert to fraction form
    49,992.79/74,989.11 = 20,020.53/x
  3. Step 3: Cross multiply
    49,992.79x = 74,989.11 × 20,020.53
  4. Step 4: Simplify right side
    49,992.79x = 1,501,321,726.43
  5. Step 5: Solve for x
    x = 1,501,321,726.43/49,992.79
  6. Step 6: Final answer
    x = 30,030.76

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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.