Home / 87,820.41-131,730.41-67,858.92

Finding the Fourth Proportional to 87,820.41, 131,730.41 and 67,858.92

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Solution

The fourth proportional to 87,820.41, 131,730.41 and 67,858.92 is: 101,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,820.41 : 131,730.41 = 67,858.92 : x
  2. Step 2: Convert to fraction form
    87,820.41/131,730.41 = 67,858.92/x
  3. Step 3: Cross multiply
    87,820.41x = 131,730.41 × 67,858.92
  4. Step 4: Simplify right side
    87,820.41x = 8,939,083,353.76
  5. Step 5: Solve for x
    x = 8,939,083,353.76/87,820.41
  6. Step 6: Final answer
    x = 101,788.22

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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.