Finding the Fourth Proportional to 75,760.08, 104,549.64 and 41,769.78
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Solution
The fourth proportional to 75,760.08, 104,549.64 and 41,769.78 is: 57,642.70
Step by Step Solution
- Step 1: Write the proportion equation
75,760.08 : 104,549.64 = 41,769.78 : x - Step 2: Convert to fraction form
75,760.08/104,549.64 = 41,769.78/x - Step 3: Cross multiply
75,760.08x = 104,549.64 × 41,769.78 - Step 4: Simplify right side
75,760.08x = 4,367,015,461.88 - Step 5: Solve for x
x = 4,367,015,461.88/75,760.08 - Step 6: Final answer
x = 57,642.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.