Finding the Fourth Proportional to 71,890.74, 107,836.11 and 27,531.09
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Solution
The fourth proportional to 71,890.74, 107,836.11 and 27,531.09 is: 41,296.64
Step by Step Solution
- Step 1: Write the proportion equation
71,890.74 : 107,836.11 = 27,531.09 : x - Step 2: Convert to fraction form
71,890.74/107,836.11 = 27,531.09/x - Step 3: Cross multiply
71,890.74x = 107,836.11 × 27,531.09 - Step 4: Simplify right side
71,890.74x = 2,968,845,649.66 - Step 5: Solve for x
x = 2,968,845,649.66/71,890.74 - Step 6: Final answer
x = 41,296.64
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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.