Home / 63,125.21-87,156.83-39,262.61

Finding the Fourth Proportional to 63,125.21, 87,156.83 and 39,262.61

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Solution

The fourth proportional to 63,125.21, 87,156.83 and 39,262.61 is: 54,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,125.21 : 87,156.83 = 39,262.61 : x
  2. Step 2: Convert to fraction form
    63,125.21/87,156.83 = 39,262.61/x
  3. Step 3: Cross multiply
    63,125.21x = 87,156.83 × 39,262.61
  4. Step 4: Simplify right side
    63,125.21x = 3,422,004,625.13
  5. Step 5: Solve for x
    x = 3,422,004,625.13/63,125.21
  6. Step 6: Final answer
    x = 54,209.79

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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.