Home / 87,773.14-121,121.22-49,538.98

Finding the Fourth Proportional to 87,773.14, 121,121.22 and 49,538.98

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Solution

The fourth proportional to 87,773.14, 121,121.22 and 49,538.98 is: 68,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.14 : 121,121.22 = 49,538.98 : x
  2. Step 2: Convert to fraction form
    87,773.14/121,121.22 = 49,538.98/x
  3. Step 3: Cross multiply
    87,773.14x = 121,121.22 × 49,538.98
  4. Step 4: Simplify right side
    87,773.14x = 6,000,221,695.16
  5. Step 5: Solve for x
    x = 6,000,221,695.16/87,773.14
  6. Step 6: Final answer
    x = 68,360.57

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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.