Finding the Fourth Proportional to 85,517.69, 118,004.19 and 47,272.09
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Solution
The fourth proportional to 85,517.69, 118,004.19 and 47,272.09 is: 65,229.83
Step by Step Solution
- Step 1: Write the proportion equation
85,517.69 : 118,004.19 = 47,272.09 : x - Step 2: Convert to fraction form
85,517.69/118,004.19 = 47,272.09/x - Step 3: Cross multiply
85,517.69x = 118,004.19 × 47,272.09 - Step 4: Simplify right side
85,517.69x = 5,578,304,808.24 - Step 5: Solve for x
x = 5,578,304,808.24/85,517.69 - Step 6: Final answer
x = 65,229.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.