Home / 49,769.89-74,652.14-20,179.78

Finding the Fourth Proportional to 49,769.89, 74,652.14 and 20,179.78

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Solution

The fourth proportional to 49,769.89, 74,652.14 and 20,179.78 is: 30,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,769.89 : 74,652.14 = 20,179.78 : x
  2. Step 2: Convert to fraction form
    49,769.89/74,652.14 = 20,179.78/x
  3. Step 3: Cross multiply
    49,769.89x = 74,652.14 × 20,179.78
  4. Step 4: Simplify right side
    49,769.89x = 1,506,463,660.83
  5. Step 5: Solve for x
    x = 1,506,463,660.83/49,769.89
  6. Step 6: Final answer
    x = 30,268.58

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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.