Home / 57,794.19-86,716.32-20,380.99

Finding the Fourth Proportional to 57,794.19, 86,716.32 and 20,380.99

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Solution

The fourth proportional to 57,794.19, 86,716.32 and 20,380.99 is: 30,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,794.19 : 86,716.32 = 20,380.99 : x
  2. Step 2: Convert to fraction form
    57,794.19/86,716.32 = 20,380.99/x
  3. Step 3: Cross multiply
    57,794.19x = 86,716.32 × 20,380.99
  4. Step 4: Simplify right side
    57,794.19x = 1,767,364,450.76
  5. Step 5: Solve for x
    x = 1,767,364,450.76/57,794.19
  6. Step 6: Final answer
    x = 30,580.32

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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.