Home / 81,783.88-122,447.09-44,209.13

Finding the Fourth Proportional to 81,783.88, 122,447.09 and 44,209.13

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Solution

The fourth proportional to 81,783.88, 122,447.09 and 44,209.13 is: 66,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,783.88 : 122,447.09 = 44,209.13 : x
  2. Step 2: Convert to fraction form
    81,783.88/122,447.09 = 44,209.13/x
  3. Step 3: Cross multiply
    81,783.88x = 122,447.09 × 44,209.13
  4. Step 4: Simplify right side
    81,783.88x = 5,413,278,818.22
  5. Step 5: Solve for x
    x = 5,413,278,818.22/81,783.88
  6. Step 6: Final answer
    x = 66,190.05

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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.