Finding the Fourth Proportional to 68,402.12, 102,618.98 and 21,654.99
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Solution
The fourth proportional to 68,402.12, 102,618.98 and 21,654.99 is: 32,487.49
Step by Step Solution
- Step 1: Write the proportion equation
68,402.12 : 102,618.98 = 21,654.99 : x - Step 2: Convert to fraction form
68,402.12/102,618.98 = 21,654.99/x - Step 3: Cross multiply
68,402.12x = 102,618.98 × 21,654.99 - Step 4: Simplify right side
68,402.12x = 2,222,212,877.44 - Step 5: Solve for x
x = 2,222,212,877.44/68,402.12 - Step 6: Final answer
x = 32,487.49
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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.