Home / 42,546.08-63,721.92-20,375.04

Finding the Fourth Proportional to 42,546.08, 63,721.92 and 20,375.04

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Solution

The fourth proportional to 42,546.08, 63,721.92 and 20,375.04 is: 30,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,546.08 : 63,721.92 = 20,375.04 : x
  2. Step 2: Convert to fraction form
    42,546.08/63,721.92 = 20,375.04/x
  3. Step 3: Cross multiply
    42,546.08x = 63,721.92 × 20,375.04
  4. Step 4: Simplify right side
    42,546.08x = 1,298,336,668.88
  5. Step 5: Solve for x
    x = 1,298,336,668.88/42,546.08
  6. Step 6: Final answer
    x = 30,516.01

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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.