Finding the Fourth Proportional to 89,837.58, 134,716.92 and 33,638.28
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Solution
The fourth proportional to 89,837.58, 134,716.92 and 33,638.28 is: 50,442.65
Step by Step Solution
- Step 1: Write the proportion equation
89,837.58 : 134,716.92 = 33,638.28 : x - Step 2: Convert to fraction form
89,837.58/134,716.92 = 33,638.28/x - Step 3: Cross multiply
89,837.58x = 134,716.92 × 33,638.28 - Step 4: Simplify right side
89,837.58x = 4,531,645,322.08 - Step 5: Solve for x
x = 4,531,645,322.08/89,837.58 - Step 6: Final answer
x = 50,442.65
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1.5x scale
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.