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Finding the Fourth Proportional to 40,380.80, 60,571.20 and 29,883.20

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Solution

The fourth proportional to 40,380.80, 60,571.20 and 29,883.20 is: 44,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,380.80 : 60,571.20 = 29,883.20 : x
  2. Step 2: Convert to fraction form
    40,380.80/60,571.20 = 29,883.20/x
  3. Step 3: Cross multiply
    40,380.80x = 60,571.20 × 29,883.20
  4. Step 4: Simplify right side
    40,380.80x = 1,810,061,283.84
  5. Step 5: Solve for x
    x = 1,810,061,283.84/40,380.80
  6. Step 6: Final answer
    x = 44,824.80

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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.