Home / 53,606.72-80,379.32-20,305.54

Finding the Fourth Proportional to 53,606.72, 80,379.32 and 20,305.54

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Solution

The fourth proportional to 53,606.72, 80,379.32 and 20,305.54 is: 30,446.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,606.72 : 80,379.32 = 20,305.54 : x
  2. Step 2: Convert to fraction form
    53,606.72/80,379.32 = 20,305.54/x
  3. Step 3: Cross multiply
    53,606.72x = 80,379.32 × 20,305.54
  4. Step 4: Simplify right side
    53,606.72x = 1,632,145,722.45
  5. Step 5: Solve for x
    x = 1,632,145,722.45/53,606.72
  6. Step 6: Final answer
    x = 30,446.66

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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.