Finding the Fourth Proportional to 86,218.40, 118,980.96 and 48,492.92
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Solution
The fourth proportional to 86,218.40, 118,980.96 and 48,492.92 is: 66,919.99
Step by Step Solution
- Step 1: Write the proportion equation
86,218.40 : 118,980.96 = 48,492.92 : x - Step 2: Convert to fraction form
86,218.40/118,980.96 = 48,492.92/x - Step 3: Cross multiply
86,218.40x = 118,980.96 × 48,492.92 - Step 4: Simplify right side
86,218.40x = 5,769,734,174.80 - Step 5: Solve for x
x = 5,769,734,174.80/86,218.40 - Step 6: Final answer
x = 66,919.99
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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.