Finding the Fourth Proportional to 71,690.92, 107,558.25 and 36,655.18
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Solution
The fourth proportional to 71,690.92, 107,558.25 and 36,655.18 is: 54,993.95
Step by Step Solution
- Step 1: Write the proportion equation
71,690.92 : 107,558.25 = 36,655.18 : x - Step 2: Convert to fraction form
71,690.92/107,558.25 = 36,655.18/x - Step 3: Cross multiply
71,690.92x = 107,558.25 × 36,655.18 - Step 4: Simplify right side
71,690.92x = 3,942,567,014.24 - Step 5: Solve for x
x = 3,942,567,014.24/71,690.92 - Step 6: Final answer
x = 54,993.95
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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.