Finding the Fourth Proportional to 86,358.30, 119,173.82 and 48,115.92
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Solution
The fourth proportional to 86,358.30, 119,173.82 and 48,115.92 is: 66,399.62
Step by Step Solution
- Step 1: Write the proportion equation
86,358.30 : 119,173.82 = 48,115.92 : x - Step 2: Convert to fraction form
86,358.30/119,173.82 = 48,115.92/x - Step 3: Cross multiply
86,358.30x = 119,173.82 × 48,115.92 - Step 4: Simplify right side
86,358.30x = 5,734,157,989.21 - Step 5: Solve for x
x = 5,734,157,989.21/86,358.30 - Step 6: Final answer
x = 66,399.62
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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.