Home / 81,644.24-122,466.88-22,478.56

Finding the Fourth Proportional to 81,644.24, 122,466.88 and 22,478.56

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Solution

The fourth proportional to 81,644.24, 122,466.88 and 22,478.56 is: 33,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,644.24 : 122,466.88 = 22,478.56 : x
  2. Step 2: Convert to fraction form
    81,644.24/122,466.88 = 22,478.56/x
  3. Step 3: Cross multiply
    81,644.24x = 122,466.88 × 22,478.56
  4. Step 4: Simplify right side
    81,644.24x = 2,752,879,110.09
  5. Step 5: Solve for x
    x = 2,752,879,110.09/81,644.24
  6. Step 6: Final answer
    x = 33,717.98

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1.5x scale

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.