Home / 80,732.54-121,118.26-25,328.54

Finding the Fourth Proportional to 80,732.54, 121,118.26 and 25,328.54

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Solution

The fourth proportional to 80,732.54, 121,118.26 and 25,328.54 is: 37,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,732.54 : 121,118.26 = 25,328.54 : x
  2. Step 2: Convert to fraction form
    80,732.54/121,118.26 = 25,328.54/x
  3. Step 3: Cross multiply
    80,732.54x = 121,118.26 × 25,328.54
  4. Step 4: Simplify right side
    80,732.54x = 3,067,748,693.14
  5. Step 5: Solve for x
    x = 3,067,748,693.14/80,732.54
  6. Step 6: Final answer
    x = 37,998.91

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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.