Home / 87,957.63-131,625-54,693.36

Finding the Fourth Proportional to 87,957.63, 131,625 and 54,693.36

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Solution

The fourth proportional to 87,957.63, 131,625 and 54,693.36 is: 81,846.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,957.63 : 131,625 = 54,693.36 : x
  2. Step 2: Convert to fraction form
    87,957.63/131,625 = 54,693.36/x
  3. Step 3: Cross multiply
    87,957.63x = 131,625 × 54,693.36
  4. Step 4: Simplify right side
    87,957.63x = 7,199,013,510
  5. Step 5: Solve for x
    x = 7,199,013,510/87,957.63
  6. Step 6: Final answer
    x = 81,846.38

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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.