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Finding the Fourth Proportional to 50,390.60, 75,537.90 and 18,792.20

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Solution

The fourth proportional to 50,390.60, 75,537.90 and 18,792.20 is: 28,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,390.60 : 75,537.90 = 18,792.20 : x
  2. Step 2: Convert to fraction form
    50,390.60/75,537.90 = 18,792.20/x
  3. Step 3: Cross multiply
    50,390.60x = 75,537.90 × 18,792.20
  4. Step 4: Simplify right side
    50,390.60x = 1,419,523,324.38
  5. Step 5: Solve for x
    x = 1,419,523,324.38/50,390.60
  6. Step 6: Final answer
    x = 28,170.40

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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.