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Finding the Fourth Proportional to 56,245.70, 84,380.70 and 16,806.80

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Solution

The fourth proportional to 56,245.70, 84,380.70 and 16,806.80 is: 25,213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,245.70 : 84,380.70 = 16,806.80 : x
  2. Step 2: Convert to fraction form
    56,245.70/84,380.70 = 16,806.80/x
  3. Step 3: Cross multiply
    56,245.70x = 84,380.70 × 16,806.80
  4. Step 4: Simplify right side
    56,245.70x = 1,418,169,548.76
  5. Step 5: Solve for x
    x = 1,418,169,548.76/56,245.70
  6. Step 6: Final answer
    x = 25,213.83

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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.