Finding the Fourth Proportional to 71,075.76, 106,665.09 and 27,805.08
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Solution
The fourth proportional to 71,075.76, 106,665.09 and 27,805.08 is: 41,727.75
Step by Step Solution
- Step 1: Write the proportion equation
71,075.76 : 106,665.09 = 27,805.08 : x - Step 2: Convert to fraction form
71,075.76/106,665.09 = 27,805.08/x - Step 3: Cross multiply
71,075.76x = 106,665.09 × 27,805.08 - Step 4: Simplify right side
71,075.76x = 2,965,831,389.72 - Step 5: Solve for x
x = 2,965,831,389.72/71,075.76 - Step 6: Final answer
x = 41,727.75
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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.