Finding the Fourth Proportional to 85,418.26, 117,881.68 and 47,690.26
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Solution
The fourth proportional to 85,418.26, 117,881.68 and 47,690.26 is: 65,815.06
Step by Step Solution
- Step 1: Write the proportion equation
85,418.26 : 117,881.68 = 47,690.26 : x - Step 2: Convert to fraction form
85,418.26/117,881.68 = 47,690.26/x - Step 3: Cross multiply
85,418.26x = 117,881.68 × 47,690.26 - Step 4: Simplify right side
85,418.26x = 5,621,807,968.44 - Step 5: Solve for x
x = 5,621,807,968.44/85,418.26 - Step 6: Final answer
x = 65,815.06
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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.