Finding the Fourth Proportional to 68,415.95, 102,613.67 and 21,662.75
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Solution
The fourth proportional to 68,415.95, 102,613.67 and 21,662.75 is: 32,490.88
Step by Step Solution
- Step 1: Write the proportion equation
68,415.95 : 102,613.67 = 21,662.75 : x - Step 2: Convert to fraction form
68,415.95/102,613.67 = 21,662.75/x - Step 3: Cross multiply
68,415.95x = 102,613.67 × 21,662.75 - Step 4: Simplify right side
68,415.95x = 2,222,894,171.48 - Step 5: Solve for x
x = 2,222,894,171.48/68,415.95 - Step 6: Final answer
x = 32,490.88
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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.