Finding the Fourth Proportional to 78,313.87, 108,125.18 and 46,492.99
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Solution
The fourth proportional to 78,313.87, 108,125.18 and 46,492.99 is: 64,191.22
Step by Step Solution
- Step 1: Write the proportion equation
78,313.87 : 108,125.18 = 46,492.99 : x - Step 2: Convert to fraction form
78,313.87/108,125.18 = 46,492.99/x - Step 3: Cross multiply
78,313.87x = 108,125.18 × 46,492.99 - Step 4: Simplify right side
78,313.87x = 5,027,062,912.49 - Step 5: Solve for x
x = 5,027,062,912.49/78,313.87 - Step 6: Final answer
x = 64,191.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.