Finding the Fourth Proportional to 86,181.36, 129,268.28 and 27,015.68
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Solution
The fourth proportional to 86,181.36, 129,268.28 and 27,015.68 is: 40,522.34
Step by Step Solution
- Step 1: Write the proportion equation
86,181.36 : 129,268.28 = 27,015.68 : x - Step 2: Convert to fraction form
86,181.36/129,268.28 = 27,015.68/x - Step 3: Cross multiply
86,181.36x = 129,268.28 × 27,015.68 - Step 4: Simplify right side
86,181.36x = 3,492,270,486.63 - Step 5: Solve for x
x = 3,492,270,486.63/86,181.36 - Step 6: Final answer
x = 40,522.34
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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.