Finding the Fourth Proportional to 86,528.85, 119,409.57 and 48,287.99
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Solution
The fourth proportional to 86,528.85, 119,409.57 and 48,287.99 is: 66,637.29
Step by Step Solution
- Step 1: Write the proportion equation
86,528.85 : 119,409.57 = 48,287.99 : x - Step 2: Convert to fraction form
86,528.85/119,409.57 = 48,287.99/x - Step 3: Cross multiply
86,528.85x = 119,409.57 × 48,287.99 - Step 4: Simplify right side
86,528.85x = 5,766,048,122.06 - Step 5: Solve for x
x = 5,766,048,122.06/86,528.85 - Step 6: Final answer
x = 66,637.29
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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.