Finding the Fourth Proportional to 85,714.09, 128,579.60 and 29,546.81
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Solution
The fourth proportional to 85,714.09, 128,579.60 and 29,546.81 is: 44,323.12
Step by Step Solution
- Step 1: Write the proportion equation
85,714.09 : 128,579.60 = 29,546.81 : x - Step 2: Convert to fraction form
85,714.09/128,579.60 = 29,546.81/x - Step 3: Cross multiply
85,714.09x = 128,579.60 × 29,546.81 - Step 4: Simplify right side
85,714.09x = 3,799,116,220.44 - Step 5: Solve for x
x = 3,799,116,220.44/85,714.09 - Step 6: Final answer
x = 44,323.12
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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.