Home / 54,183.19-74,778.42-31,213.80

Finding the Fourth Proportional to 54,183.19, 74,778.42 and 31,213.80

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Solution

The fourth proportional to 54,183.19, 74,778.42 and 31,213.80 is: 43,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,183.19 : 74,778.42 = 31,213.80 : x
  2. Step 2: Convert to fraction form
    54,183.19/74,778.42 = 31,213.80/x
  3. Step 3: Cross multiply
    54,183.19x = 74,778.42 × 31,213.80
  4. Step 4: Simplify right side
    54,183.19x = 2,334,118,646.20
  5. Step 5: Solve for x
    x = 2,334,118,646.20/54,183.19
  6. Step 6: Final answer
    x = 43,078.28

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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.