Finding the Fourth Proportional to 86,005.44, 118,687.04 and 48,279.68
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Solution
The fourth proportional to 86,005.44, 118,687.04 and 48,279.68 is: 66,625.70
Step by Step Solution
- Step 1: Write the proportion equation
86,005.44 : 118,687.04 = 48,279.68 : x - Step 2: Convert to fraction form
86,005.44/118,687.04 = 48,279.68/x - Step 3: Cross multiply
86,005.44x = 118,687.04 × 48,279.68 - Step 4: Simplify right side
86,005.44x = 5,730,172,311.35 - Step 5: Solve for x
x = 5,730,172,311.35/86,005.44 - Step 6: Final answer
x = 66,625.70
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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.