Home / 57,983.18-86,969.90-18,529.70

Finding the Fourth Proportional to 57,983.18, 86,969.90 and 18,529.70

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Solution

The fourth proportional to 57,983.18, 86,969.90 and 18,529.70 is: 27,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,983.18 : 86,969.90 = 18,529.70 : x
  2. Step 2: Convert to fraction form
    57,983.18/86,969.90 = 18,529.70/x
  3. Step 3: Cross multiply
    57,983.18x = 86,969.90 × 18,529.70
  4. Step 4: Simplify right side
    57,983.18x = 1,611,525,628.53
  5. Step 5: Solve for x
    x = 1,611,525,628.53/57,983.18
  6. Step 6: Final answer
    x = 27,792.99

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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.