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Finding the Fourth Proportional to 50,234.40, 75,428.40 and 34,720.80

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Solution

The fourth proportional to 50,234.40, 75,428.40 and 34,720.80 is: 52,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,234.40 : 75,428.40 = 34,720.80 : x
  2. Step 2: Convert to fraction form
    50,234.40/75,428.40 = 34,720.80/x
  3. Step 3: Cross multiply
    50,234.40x = 75,428.40 × 34,720.80
  4. Step 4: Simplify right side
    50,234.40x = 2,618,934,390.72
  5. Step 5: Solve for x
    x = 2,618,934,390.72/50,234.40
  6. Step 6: Final answer
    x = 52,134.28

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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.