Home / 49,808.86-74,710.04-20,229.28

Finding the Fourth Proportional to 49,808.86, 74,710.04 and 20,229.28

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Solution

The fourth proportional to 49,808.86, 74,710.04 and 20,229.28 is: 30,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,808.86 : 74,710.04 = 20,229.28 : x
  2. Step 2: Convert to fraction form
    49,808.86/74,710.04 = 20,229.28/x
  3. Step 3: Cross multiply
    49,808.86x = 74,710.04 × 20,229.28
  4. Step 4: Simplify right side
    49,808.86x = 1,511,330,317.97
  5. Step 5: Solve for x
    x = 1,511,330,317.97/49,808.86
  6. Step 6: Final answer
    x = 30,342.60

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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.