Finding the Fourth Proportional to 80,805.45, 121,172.99 and 27,482.99
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Solution
The fourth proportional to 80,805.45, 121,172.99 and 27,482.99 is: 41,212.51
Step by Step Solution
- Step 1: Write the proportion equation
80,805.45 : 121,172.99 = 27,482.99 : x - Step 2: Convert to fraction form
80,805.45/121,172.99 = 27,482.99/x - Step 3: Cross multiply
80,805.45x = 121,172.99 × 27,482.99 - Step 4: Simplify right side
80,805.45x = 3,330,195,329.16 - Step 5: Solve for x
x = 3,330,195,329.16/80,805.45 - Step 6: Final answer
x = 41,212.51
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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.