Finding the Fourth Proportional to 71,213.48, 106,827.44 and 18,623.40
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Solution
The fourth proportional to 71,213.48, 106,827.44 and 18,623.40 is: 27,936.99
Step by Step Solution
- Step 1: Write the proportion equation
71,213.48 : 106,827.44 = 18,623.40 : x - Step 2: Convert to fraction form
71,213.48/106,827.44 = 18,623.40/x - Step 3: Cross multiply
71,213.48x = 106,827.44 × 18,623.40 - Step 4: Simplify right side
71,213.48x = 1,989,490,146.10 - Step 5: Solve for x
x = 1,989,490,146.10/71,213.48 - Step 6: Final answer
x = 27,936.99
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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.