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Finding the Fourth Proportional to 40,561.70, 60,845.70 and 14,272.34

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Solution

The fourth proportional to 40,561.70, 60,845.70 and 14,272.34 is: 21,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,561.70 : 60,845.70 = 14,272.34 : x
  2. Step 2: Convert to fraction form
    40,561.70/60,845.70 = 14,272.34/x
  3. Step 3: Cross multiply
    40,561.70x = 60,845.70 × 14,272.34
  4. Step 4: Simplify right side
    40,561.70x = 868,410,517.94
  5. Step 5: Solve for x
    x = 868,410,517.94/40,561.70
  6. Step 6: Final answer
    x = 21,409.62

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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.