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Finding the Fourth Proportional to 73,939.20, 110,923.20 and 31,819.20

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Solution

The fourth proportional to 73,939.20, 110,923.20 and 31,819.20 is: 47,735.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,939.20 : 110,923.20 = 31,819.20 : x
  2. Step 2: Convert to fraction form
    73,939.20/110,923.20 = 31,819.20/x
  3. Step 3: Cross multiply
    73,939.20x = 110,923.20 × 31,819.20
  4. Step 4: Simplify right side
    73,939.20x = 3,529,487,485.44
  5. Step 5: Solve for x
    x = 3,529,487,485.44/73,939.20
  6. Step 6: Final answer
    x = 47,735.00

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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.