Home / 49,921.68-74,861.70-20,319.42

Finding the Fourth Proportional to 49,921.68, 74,861.70 and 20,319.42

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Solution

The fourth proportional to 49,921.68, 74,861.70 and 20,319.42 is: 30,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921.68 : 74,861.70 = 20,319.42 : x
  2. Step 2: Convert to fraction form
    49,921.68/74,861.70 = 20,319.42/x
  3. Step 3: Cross multiply
    49,921.68x = 74,861.70 × 20,319.42
  4. Step 4: Simplify right side
    49,921.68x = 1,521,146,324.21
  5. Step 5: Solve for x
    x = 1,521,146,324.21/49,921.68
  6. Step 6: Final answer
    x = 30,470.66

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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.