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Finding the Fourth Proportional to 36,762.70, 55,055.23 and 20,919.73

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Solution

The fourth proportional to 36,762.70, 55,055.23 and 20,919.73 is: 31,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,762.70 : 55,055.23 = 20,919.73 : x
  2. Step 2: Convert to fraction form
    36,762.70/55,055.23 = 20,919.73/x
  3. Step 3: Cross multiply
    36,762.70x = 55,055.23 × 20,919.73
  4. Step 4: Simplify right side
    36,762.70x = 1,151,740,546.69
  5. Step 5: Solve for x
    x = 1,151,740,546.69/36,762.70
  6. Step 6: Final answer
    x = 31,329.05

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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.