Finding the Fourth Proportional to 75,343.40, 112,943.10 and 27,945.80
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Solution
The fourth proportional to 75,343.40, 112,943.10 and 27,945.80 is: 41,891.99
Step by Step Solution
- Step 1: Write the proportion equation
75,343.40 : 112,943.10 = 27,945.80 : x - Step 2: Convert to fraction form
75,343.40/112,943.10 = 27,945.80/x - Step 3: Cross multiply
75,343.40x = 112,943.10 × 27,945.80 - Step 4: Simplify right side
75,343.40x = 3,156,285,283.98 - Step 5: Solve for x
x = 3,156,285,283.98/75,343.40 - Step 6: Final answer
x = 41,891.99
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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.