Finding the Fourth Proportional to 68,141.22, 102,212.75 and 21,394.09
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Solution
The fourth proportional to 68,141.22, 102,212.75 and 21,394.09 is: 32,091.42
Step by Step Solution
- Step 1: Write the proportion equation
68,141.22 : 102,212.75 = 21,394.09 : x - Step 2: Convert to fraction form
68,141.22/102,212.75 = 21,394.09/x - Step 3: Cross multiply
68,141.22x = 102,212.75 × 21,394.09 - Step 4: Simplify right side
68,141.22x = 2,186,748,772.65 - Step 5: Solve for x
x = 2,186,748,772.65/68,141.22 - Step 6: Final answer
x = 32,091.42
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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.