Anthony grew 64 plants with 32 seed packets. how many seed packets does anthony need to have a total of 90 plants in his backyard. unit rate word problem. i need it asap

Let the total seed packets needed Anthony to have 90 plants be x.

then,
64:32 :: 90:x
2:1 :: 90:x
90 = 2x
x = 45 seed packets.

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64 plants = 32 seed packets.
1 plant = seed packets.

90 plants = seed packets.

Anthony need 45 seed packets to have 90 plants.