Finding the Fourth Proportional to 77,193.84, 115,733.56 and 36,647.29
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Solution
The fourth proportional to 77,193.84, 115,733.56 and 36,647.29 is: 54,943.78
Step by Step Solution
- Step 1: Write the proportion equation
77,193.84 : 115,733.56 = 36,647.29 : x - Step 2: Convert to fraction form
77,193.84/115,733.56 = 36,647.29/x - Step 3: Cross multiply
77,193.84x = 115,733.56 × 36,647.29 - Step 4: Simplify right side
77,193.84x = 4,241,320,922.77 - Step 5: Solve for x
x = 4,241,320,922.77/77,193.84 - Step 6: Final answer
x = 54,943.78
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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.