Home / 57,850.12-86,742.78-22,780.36

Finding the Fourth Proportional to 57,850.12, 86,742.78 and 22,780.36

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Solution

The fourth proportional to 57,850.12, 86,742.78 and 22,780.36 is: 34,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,850.12 : 86,742.78 = 22,780.36 : x
  2. Step 2: Convert to fraction form
    57,850.12/86,742.78 = 22,780.36/x
  3. Step 3: Cross multiply
    57,850.12x = 86,742.78 × 22,780.36
  4. Step 4: Simplify right side
    57,850.12x = 1,976,031,755.80
  5. Step 5: Solve for x
    x = 1,976,031,755.80/57,850.12
  6. Step 6: Final answer
    x = 34,157.78

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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.