Home / 55,786.20-83,679.30-18,850.20

Finding the Fourth Proportional to 55,786.20, 83,679.30 and 18,850.20

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Solution

The fourth proportional to 55,786.20, 83,679.30 and 18,850.20 is: 28,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,786.20 : 83,679.30 = 18,850.20 : x
  2. Step 2: Convert to fraction form
    55,786.20/83,679.30 = 18,850.20/x
  3. Step 3: Cross multiply
    55,786.20x = 83,679.30 × 18,850.20
  4. Step 4: Simplify right side
    55,786.20x = 1,577,371,540.86
  5. Step 5: Solve for x
    x = 1,577,371,540.86/55,786.20
  6. Step 6: Final answer
    x = 28,275.30

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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.