Is this for money? Do you want an equivalent fraction? Please be more specific, but I'll imply a couple of options.
FOR MONEY:
50,000 euros is 55142.50 dollars
50,000 dollars is 45337.08 euros
Is 50,000 US dollars a good salary? In my opinion, yes. If you are a single person, and you work an office job from 9 to 5, then yes, that is a good salary.
MATH/NUMBERS:
50,000 = 100,000 ÷ 2
50,000 = 200,000 ÷ 4
50,000 = 25,000 × 2
50,000 = 12,500 × 4
There are other examples that could be used for both money and math, but I would not be able/do not have the time to list them all.
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I hope this helps!