Home / 54,704.20-82,121.10-31,030.60

Finding the Fourth Proportional to 54,704.20, 82,121.10 and 31,030.60

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Solution

The fourth proportional to 54,704.20, 82,121.10 and 31,030.60 is: 46,582.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,704.20 : 82,121.10 = 31,030.60 : x
  2. Step 2: Convert to fraction form
    54,704.20/82,121.10 = 31,030.60/x
  3. Step 3: Cross multiply
    54,704.20x = 82,121.10 × 31,030.60
  4. Step 4: Simplify right side
    54,704.20x = 2,548,267,005.66
  5. Step 5: Solve for x
    x = 2,548,267,005.66/54,704.20
  6. Step 6: Final answer
    x = 46,582.66

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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.