Home / 81,999.77-113,168.21-50,189.85

Finding the Fourth Proportional to 81,999.77, 113,168.21 and 50,189.85

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Solution

The fourth proportional to 81,999.77, 113,168.21 and 50,189.85 is: 69,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999.77 : 113,168.21 = 50,189.85 : x
  2. Step 2: Convert to fraction form
    81,999.77/113,168.21 = 50,189.85/x
  3. Step 3: Cross multiply
    81,999.77x = 113,168.21 × 50,189.85
  4. Step 4: Simplify right side
    81,999.77x = 5,679,895,233.72
  5. Step 5: Solve for x
    x = 5,679,895,233.72/81,999.77
  6. Step 6: Final answer
    x = 69,267.21

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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.