Finding the Fourth Proportional to 71,992.18, 107,941.98 and 29,901.28
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Solution
The fourth proportional to 71,992.18, 107,941.98 and 29,901.28 is: 44,832.69
Step by Step Solution
- Step 1: Write the proportion equation
71,992.18 : 107,941.98 = 29,901.28 : x - Step 2: Convert to fraction form
71,992.18/107,941.98 = 29,901.28/x - Step 3: Cross multiply
71,992.18x = 107,941.98 × 29,901.28 - Step 4: Simplify right side
71,992.18x = 3,227,603,367.73 - Step 5: Solve for x
x = 3,227,603,367.73/71,992.18 - Step 6: Final answer
x = 44,832.69
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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.