Home / 81,933.75-122,920.07-26,529.75

Finding the Fourth Proportional to 81,933.75, 122,920.07 and 26,529.75

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Solution

The fourth proportional to 81,933.75, 122,920.07 and 26,529.75 is: 39,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,933.75 : 122,920.07 = 26,529.75 : x
  2. Step 2: Convert to fraction form
    81,933.75/122,920.07 = 26,529.75/x
  3. Step 3: Cross multiply
    81,933.75x = 122,920.07 × 26,529.75
  4. Step 4: Simplify right side
    81,933.75x = 3,261,038,594.43
  5. Step 5: Solve for x
    x = 3,261,038,594.43/81,933.75
  6. Step 6: Final answer
    x = 39,800.92

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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.