Home / 57,983.05-86,969.72-18,529.57

Finding the Fourth Proportional to 57,983.05, 86,969.72 and 18,529.57

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Solution

The fourth proportional to 57,983.05, 86,969.72 and 18,529.57 is: 27,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,983.05 : 86,969.72 = 18,529.57 : x
  2. Step 2: Convert to fraction form
    57,983.05/86,969.72 = 18,529.57/x
  3. Step 3: Cross multiply
    57,983.05x = 86,969.72 × 18,529.57
  4. Step 4: Simplify right side
    57,983.05x = 1,611,511,421.97
  5. Step 5: Solve for x
    x = 1,611,511,421.97/57,983.05
  6. Step 6: Final answer
    x = 27,792.80

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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.