Home / 36,621.60-54,964.80-31,372.80

Finding the Fourth Proportional to 36,621.60, 54,964.80 and 31,372.80

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Solution

The fourth proportional to 36,621.60, 54,964.80 and 31,372.80 is: 47,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,621.60 : 54,964.80 = 31,372.80 : x
  2. Step 2: Convert to fraction form
    36,621.60/54,964.80 = 31,372.80/x
  3. Step 3: Cross multiply
    36,621.60x = 54,964.80 × 31,372.80
  4. Step 4: Simplify right side
    36,621.60x = 1,724,399,677.44
  5. Step 5: Solve for x
    x = 1,724,399,677.44/36,621.60
  6. Step 6: Final answer
    x = 47,086.96

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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.