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Finding the Fourth Proportional to 50,944.60, 76,416.90 and 39,280.60

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Solution

The fourth proportional to 50,944.60, 76,416.90 and 39,280.60 is: 58,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,944.60 : 76,416.90 = 39,280.60 : x
  2. Step 2: Convert to fraction form
    50,944.60/76,416.90 = 39,280.60/x
  3. Step 3: Cross multiply
    50,944.60x = 76,416.90 × 39,280.60
  4. Step 4: Simplify right side
    50,944.60x = 3,001,701,682.14
  5. Step 5: Solve for x
    x = 3,001,701,682.14/50,944.60
  6. Step 6: Final answer
    x = 58,920.90

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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.