Finding the Fourth Proportional to 71,391.40, 107,087.94 and 33,955.08
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Solution
The fourth proportional to 71,391.40, 107,087.94 and 33,955.08 is: 50,933.02
Step by Step Solution
- Step 1: Write the proportion equation
71,391.40 : 107,087.94 = 33,955.08 : x - Step 2: Convert to fraction form
71,391.40/107,087.94 = 33,955.08/x - Step 3: Cross multiply
71,391.40x = 107,087.94 × 33,955.08 - Step 4: Simplify right side
71,391.40x = 3,636,179,569.74 - Step 5: Solve for x
x = 3,636,179,569.74/71,391.40 - Step 6: Final answer
x = 50,933.02
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Similar ratio
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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.