Final answer:
The total amount of dividends to which common stockholders are entitled is $100,000.
Step-by-step explanation:
The total amount of dividends to which common stockholders are entitled can be calculated by multiplying the dividend rate by the number of common shares outstanding. In this case, there were no dividends declared or paid in 2010 or 2011, so the calculation only includes the dividends declared in 2012. The preferred stock does not receive any dividends, so we only consider the common stock.
Dividend amount = Dividend rate × Number of common shares
Dividend amount = $50,000 × 2,000
Dividend amount = $100,000
Therefore, the total amount of dividends to which common stockholders are entitled is $100,000.