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Finding the Fourth Proportional to 36,439.60, 54,659.40 and 32,940.40

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Solution

The fourth proportional to 36,439.60, 54,659.40 and 32,940.40 is: 49,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,439.60 : 54,659.40 = 32,940.40 : x
  2. Step 2: Convert to fraction form
    36,439.60/54,659.40 = 32,940.40/x
  3. Step 3: Cross multiply
    36,439.60x = 54,659.40 × 32,940.40
  4. Step 4: Simplify right side
    36,439.60x = 1,800,502,499.76
  5. Step 5: Solve for x
    x = 1,800,502,499.76/36,439.60
  6. Step 6: Final answer
    x = 49,410.60

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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.