Finding the Fourth Proportional to 91,080.45, 136,629.79 and 27,899.84
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Solution
The fourth proportional to 91,080.45, 136,629.79 and 27,899.84 is: 41,852.55
Step by Step Solution
- Step 1: Write the proportion equation
91,080.45 : 136,629.79 = 27,899.84 : x - Step 2: Convert to fraction form
91,080.45/136,629.79 = 27,899.84/x - Step 3: Cross multiply
91,080.45x = 136,629.79 × 27,899.84 - Step 4: Simplify right side
91,080.45x = 3,811,949,280.23 - Step 5: Solve for x
x = 3,811,949,280.23/91,080.45 - Step 6: Final answer
x = 41,852.55
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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.