Home / 76,799.75-105,961.57-49,981.73

Finding the Fourth Proportional to 76,799.75, 105,961.57 and 49,981.73

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Solution

The fourth proportional to 76,799.75, 105,961.57 and 49,981.73 is: 68,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,799.75 : 105,961.57 = 49,981.73 : x
  2. Step 2: Convert to fraction form
    76,799.75/105,961.57 = 49,981.73/x
  3. Step 3: Cross multiply
    76,799.75x = 105,961.57 × 49,981.73
  4. Step 4: Simplify right side
    76,799.75x = 5,296,141,927.35
  5. Step 5: Solve for x
    x = 5,296,141,927.35/76,799.75
  6. Step 6: Final answer
    x = 68,960.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.