Finding the Fourth Proportional to 86,662.69, 129,968.20 and 36,741.99
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Solution
The fourth proportional to 86,662.69, 129,968.20 and 36,741.99 is: 55,102.03
Step by Step Solution
- Step 1: Write the proportion equation
86,662.69 : 129,968.20 = 36,741.99 : x - Step 2: Convert to fraction form
86,662.69/129,968.20 = 36,741.99/x - Step 3: Cross multiply
86,662.69x = 129,968.20 × 36,741.99 - Step 4: Simplify right side
86,662.69x = 4,775,290,304.72 - Step 5: Solve for x
x = 4,775,290,304.72/86,662.69 - Step 6: Final answer
x = 55,102.03
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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.