Home / 55,052.21-82,578.31-13,499.21

Finding the Fourth Proportional to 55,052.21, 82,578.31 and 13,499.21

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Solution

The fourth proportional to 55,052.21, 82,578.31 and 13,499.21 is: 20,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,052.21 : 82,578.31 = 13,499.21 : x
  2. Step 2: Convert to fraction form
    55,052.21/82,578.31 = 13,499.21/x
  3. Step 3: Cross multiply
    55,052.21x = 82,578.31 × 13,499.21
  4. Step 4: Simplify right side
    55,052.21x = 1,114,741,694.30
  5. Step 5: Solve for x
    x = 1,114,741,694.30/55,052.21
  6. Step 6: Final answer
    x = 20,248.81

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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.