Home / 51,850.72-71,559.35-31,720.97

Finding the Fourth Proportional to 51,850.72, 71,559.35 and 31,720.97

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Solution

The fourth proportional to 51,850.72, 71,559.35 and 31,720.97 is: 43,778.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,850.72 : 71,559.35 = 31,720.97 : x
  2. Step 2: Convert to fraction form
    51,850.72/71,559.35 = 31,720.97/x
  3. Step 3: Cross multiply
    51,850.72x = 71,559.35 × 31,720.97
  4. Step 4: Simplify right side
    51,850.72x = 2,269,932,014.86
  5. Step 5: Solve for x
    x = 2,269,932,014.86/51,850.72
  6. Step 6: Final answer
    x = 43,778.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.