Finding the Fourth Proportional to 85,736.26, 128,579.48 and 33,133.44
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Solution
The fourth proportional to 85,736.26, 128,579.48 and 33,133.44 is: 49,690.53
Step by Step Solution
- Step 1: Write the proportion equation
85,736.26 : 128,579.48 = 33,133.44 : x - Step 2: Convert to fraction form
85,736.26/128,579.48 = 33,133.44/x - Step 3: Cross multiply
85,736.26x = 128,579.48 × 33,133.44 - Step 4: Simplify right side
85,736.26x = 4,260,280,485.81 - Step 5: Solve for x
x = 4,260,280,485.81/85,736.26 - Step 6: Final answer
x = 49,690.53
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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.