Finding the Fourth Proportional to 75,045.75, 112,583.69 and 27,661.08
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Solution
The fourth proportional to 75,045.75, 112,583.69 and 27,661.08 is: 41,497.17
Step by Step Solution
- Step 1: Write the proportion equation
75,045.75 : 112,583.69 = 27,661.08 : x - Step 2: Convert to fraction form
75,045.75/112,583.69 = 27,661.08/x - Step 3: Cross multiply
75,045.75x = 112,583.69 × 27,661.08 - Step 4: Simplify right side
75,045.75x = 3,114,186,317.48 - Step 5: Solve for x
x = 3,114,186,317.48/75,045.75 - Step 6: Final answer
x = 41,497.17
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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.