Home / 87,650.82-120,931.22-53,623.84

Finding the Fourth Proportional to 87,650.82, 120,931.22 and 53,623.84

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Solution

The fourth proportional to 87,650.82, 120,931.22 and 53,623.84 is: 73,984.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,650.82 : 120,931.22 = 53,623.84 : x
  2. Step 2: Convert to fraction form
    87,650.82/120,931.22 = 53,623.84/x
  3. Step 3: Cross multiply
    87,650.82x = 120,931.22 × 53,623.84
  4. Step 4: Simplify right side
    87,650.82x = 6,484,795,563.54
  5. Step 5: Solve for x
    x = 6,484,795,563.54/87,650.82
  6. Step 6: Final answer
    x = 73,984.42

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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.