Home / 82,274.22-113,593.68-76,623.84

Finding the Fourth Proportional to 82,274.22, 113,593.68 and 76,623.84

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Solution

The fourth proportional to 82,274.22, 113,593.68 and 76,623.84 is: 105,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,274.22 : 113,593.68 = 76,623.84 : x
  2. Step 2: Convert to fraction form
    82,274.22/113,593.68 = 76,623.84/x
  3. Step 3: Cross multiply
    82,274.22x = 113,593.68 × 76,623.84
  4. Step 4: Simplify right side
    82,274.22x = 8,703,983,961.33
  5. Step 5: Solve for x
    x = 8,703,983,961.33/82,274.22
  6. Step 6: Final answer
    x = 105,792.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.