Finding the Fourth Proportional to 91,075.13, 136,628.49 and 27,893.75
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Solution
The fourth proportional to 91,075.13, 136,628.49 and 27,893.75 is: 41,845.46
Step by Step Solution
- Step 1: Write the proportion equation
91,075.13 : 136,628.49 = 27,893.75 : x - Step 2: Convert to fraction form
91,075.13/136,628.49 = 27,893.75/x - Step 3: Cross multiply
91,075.13x = 136,628.49 × 27,893.75 - Step 4: Simplify right side
91,075.13x = 3,811,080,942.94 - Step 5: Solve for x
x = 3,811,080,942.94/91,075.13 - Step 6: Final answer
x = 41,845.46
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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.