Finding the Fourth Proportional to 71,625.68, 107,428.60 and 19,039.44
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Solution
The fourth proportional to 71,625.68, 107,428.60 and 19,039.44 is: 28,556.52
Step by Step Solution
- Step 1: Write the proportion equation
71,625.68 : 107,428.60 = 19,039.44 : x - Step 2: Convert to fraction form
71,625.68/107,428.60 = 19,039.44/x - Step 3: Cross multiply
71,625.68x = 107,428.60 × 19,039.44 - Step 4: Simplify right side
71,625.68x = 2,045,380,383.98 - Step 5: Solve for x
x = 2,045,380,383.98/71,625.68 - Step 6: Final answer
x = 28,556.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.