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Finding the Fourth Proportional to 40,108.40, 60,170.90 and 12,027.32

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Solution

The fourth proportional to 40,108.40, 60,170.90 and 12,027.32 is: 18,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.40 : 60,170.90 = 12,027.32 : x
  2. Step 2: Convert to fraction form
    40,108.40/60,170.90 = 12,027.32/x
  3. Step 3: Cross multiply
    40,108.40x = 60,170.90 × 12,027.32
  4. Step 4: Simplify right side
    40,108.40x = 723,694,668.99
  5. Step 5: Solve for x
    x = 723,694,668.99/40,108.40
  6. Step 6: Final answer
    x = 18,043.47

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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.