Finding the Fourth Proportional to 71,961.68, 107,950.20 and 19,371.92
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Solution
The fourth proportional to 71,961.68, 107,950.20 and 19,371.92 is: 29,059.95
Step by Step Solution
- Step 1: Write the proportion equation
71,961.68 : 107,950.20 = 19,371.92 : x - Step 2: Convert to fraction form
71,961.68/107,950.20 = 19,371.92/x - Step 3: Cross multiply
71,961.68x = 107,950.20 × 19,371.92 - Step 4: Simplify right side
71,961.68x = 2,091,202,638.38 - Step 5: Solve for x
x = 2,091,202,638.38/71,961.68 - Step 6: Final answer
x = 29,059.95
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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.