Home / 87,822.60-131,345.10-73,825.80

Finding the Fourth Proportional to 87,822.60, 131,345.10 and 73,825.80

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Solution

The fourth proportional to 87,822.60, 131,345.10 and 73,825.80 is: 110,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,822.60 : 131,345.10 = 73,825.80 : x
  2. Step 2: Convert to fraction form
    87,822.60/131,345.10 = 73,825.80/x
  3. Step 3: Cross multiply
    87,822.60x = 131,345.10 × 73,825.80
  4. Step 4: Simplify right side
    87,822.60x = 9,696,657,083.58
  5. Step 5: Solve for x
    x = 9,696,657,083.58/87,822.60
  6. Step 6: Final answer
    x = 110,411.87

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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.