Home / 63,421.38-95,139.90-20,725.80

Finding the Fourth Proportional to 63,421.38, 95,139.90 and 20,725.80

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Solution

The fourth proportional to 63,421.38, 95,139.90 and 20,725.80 is: 31,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.38 : 95,139.90 = 20,725.80 : x
  2. Step 2: Convert to fraction form
    63,421.38/95,139.90 = 20,725.80/x
  3. Step 3: Cross multiply
    63,421.38x = 95,139.90 × 20,725.80
  4. Step 4: Simplify right side
    63,421.38x = 1,971,850,630.37
  5. Step 5: Solve for x
    x = 1,971,850,630.37/63,421.38
  6. Step 6: Final answer
    x = 31,091.26

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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.