Finding the Fourth Proportional to 71,612.12, 107,418.22 and 27,228.62
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Solution
The fourth proportional to 71,612.12, 107,418.22 and 27,228.62 is: 40,842.95
Step by Step Solution
- Step 1: Write the proportion equation
71,612.12 : 107,418.22 = 27,228.62 : x - Step 2: Convert to fraction form
71,612.12/107,418.22 = 27,228.62/x - Step 3: Cross multiply
71,612.12x = 107,418.22 × 27,228.62 - Step 4: Simplify right side
71,612.12x = 2,924,849,893.46 - Step 5: Solve for x
x = 2,924,849,893.46/71,612.12 - Step 6: Final answer
x = 40,842.95
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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.