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Finding the Fourth Proportional to 37,078.20, 55,611.90 and 10,780.20

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Solution

The fourth proportional to 37,078.20, 55,611.90 and 10,780.20 is: 16,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,078.20 : 55,611.90 = 10,780.20 : x
  2. Step 2: Convert to fraction form
    37,078.20/55,611.90 = 10,780.20/x
  3. Step 3: Cross multiply
    37,078.20x = 55,611.90 × 10,780.20
  4. Step 4: Simplify right side
    37,078.20x = 599,507,404.38
  5. Step 5: Solve for x
    x = 599,507,404.38/37,078.20
  6. Step 6: Final answer
    x = 16,168.73

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1.5x scale

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.