Finding the Fourth Proportional to 86,144.19, 118,878.95 and 48,418.44
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Solution
The fourth proportional to 86,144.19, 118,878.95 and 48,418.44 is: 66,817.43
Step by Step Solution
- Step 1: Write the proportion equation
86,144.19 : 118,878.95 = 48,418.44 : x - Step 2: Convert to fraction form
86,144.19/118,878.95 = 48,418.44/x - Step 3: Cross multiply
86,144.19x = 118,878.95 × 48,418.44 - Step 4: Simplify right side
86,144.19x = 5,755,933,065.75 - Step 5: Solve for x
x = 5,755,933,065.75/86,144.19 - Step 6: Final answer
x = 66,817.43
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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.