Home / 49,811.72-74,724.05-20,230.52

Finding the Fourth Proportional to 49,811.72, 74,724.05 and 20,230.52

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Solution

The fourth proportional to 49,811.72, 74,724.05 and 20,230.52 is: 30,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,811.72 : 74,724.05 = 20,230.52 : x
  2. Step 2: Convert to fraction form
    49,811.72/74,724.05 = 20,230.52/x
  3. Step 3: Cross multiply
    49,811.72x = 74,724.05 × 20,230.52
  4. Step 4: Simplify right side
    49,811.72x = 1,511,705,913.23
  5. Step 5: Solve for x
    x = 1,511,705,913.23/49,811.72
  6. Step 6: Final answer
    x = 30,348.40

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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.