Home / 49,979.16-74,968.72-20,410.92

Finding the Fourth Proportional to 49,979.16, 74,968.72 and 20,410.92

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Solution

The fourth proportional to 49,979.16, 74,968.72 and 20,410.92 is: 30,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,979.16 : 74,968.72 = 20,410.92 : x
  2. Step 2: Convert to fraction form
    49,979.16/74,968.72 = 20,410.92/x
  3. Step 3: Cross multiply
    49,979.16x = 74,968.72 × 20,410.92
  4. Step 4: Simplify right side
    49,979.16x = 1,530,180,546.42
  5. Step 5: Solve for x
    x = 1,530,180,546.42/49,979.16
  6. Step 6: Final answer
    x = 30,616.37

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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.