Finding the Fourth Proportional to 71,849.26, 107,773.91 and 21,929.63
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Solution
The fourth proportional to 71,849.26, 107,773.91 and 21,929.63 is: 32,894.45
Step by Step Solution
- Step 1: Write the proportion equation
71,849.26 : 107,773.91 = 21,929.63 : x - Step 2: Convert to fraction form
71,849.26/107,773.91 = 21,929.63/x - Step 3: Cross multiply
71,849.26x = 107,773.91 × 21,929.63 - Step 4: Simplify right side
71,849.26x = 2,363,441,860.31 - Step 5: Solve for x
x = 2,363,441,860.31/71,849.26 - Step 6: Final answer
x = 32,894.45
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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.