Finding the Fourth Proportional to 86,393.62, 119,208.74 and 48,144.79
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Solution
The fourth proportional to 86,393.62, 119,208.74 and 48,144.79 is: 66,431.75
Step by Step Solution
- Step 1: Write the proportion equation
86,393.62 : 119,208.74 = 48,144.79 : x - Step 2: Convert to fraction form
86,393.62/119,208.74 = 48,144.79/x - Step 3: Cross multiply
86,393.62x = 119,208.74 × 48,144.79 - Step 4: Simplify right side
86,393.62x = 5,739,279,753.46 - Step 5: Solve for x
x = 5,739,279,753.46/86,393.62 - Step 6: Final answer
x = 66,431.75
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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.