Home / 54,183.44-74,607-47,431.28

Finding the Fourth Proportional to 54,183.44, 74,607 and 47,431.28

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Solution

The fourth proportional to 54,183.44, 74,607 and 47,431.28 is: 65,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,183.44 : 74,607 = 47,431.28 : x
  2. Step 2: Convert to fraction form
    54,183.44/74,607 = 47,431.28/x
  3. Step 3: Cross multiply
    54,183.44x = 74,607 × 47,431.28
  4. Step 4: Simplify right side
    54,183.44x = 3,538,705,506.96
  5. Step 5: Solve for x
    x = 3,538,705,506.96/54,183.44
  6. Step 6: Final answer
    x = 65,309.72

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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.