Finding the Fourth Proportional to 71,974.44, 107,961.48 and 19,383.98
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Solution
The fourth proportional to 71,974.44, 107,961.48 and 19,383.98 is: 29,075.92
Step by Step Solution
- Step 1: Write the proportion equation
71,974.44 : 107,961.48 = 19,383.98 : x - Step 2: Convert to fraction form
71,974.44/107,961.48 = 19,383.98/x - Step 3: Cross multiply
71,974.44x = 107,961.48 × 19,383.98 - Step 4: Simplify right side
71,974.44x = 2,092,723,169.09 - Step 5: Solve for x
x = 2,092,723,169.09/71,974.44 - Step 6: Final answer
x = 29,075.92
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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.