Finding the Fourth Proportional to 68,663.44, 102,996.96 and 21,916.28
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Solution
The fourth proportional to 68,663.44, 102,996.96 and 21,916.28 is: 32,874.99
Step by Step Solution
- Step 1: Write the proportion equation
68,663.44 : 102,996.96 = 21,916.28 : x - Step 2: Convert to fraction form
68,663.44/102,996.96 = 21,916.28/x - Step 3: Cross multiply
68,663.44x = 102,996.96 × 21,916.28 - Step 4: Simplify right side
68,663.44x = 2,257,310,214.51 - Step 5: Solve for x
x = 2,257,310,214.51/68,663.44 - Step 6: Final answer
x = 32,874.99
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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.