Finding the Fourth Proportional to 75,409.08, 113,074.92 and 39,889.56
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Solution
The fourth proportional to 75,409.08, 113,074.92 and 39,889.56 is: 59,813.88
Step by Step Solution
- Step 1: Write the proportion equation
75,409.08 : 113,074.92 = 39,889.56 : x - Step 2: Convert to fraction form
75,409.08/113,074.92 = 39,889.56/x - Step 3: Cross multiply
75,409.08x = 113,074.92 × 39,889.56 - Step 4: Simplify right side
75,409.08x = 4,510,509,229.87 - Step 5: Solve for x
x = 4,510,509,229.87/75,409.08 - Step 6: Final answer
x = 59,813.88
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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.