Finding the Fourth Proportional to 85,431.26, 117,894.67 and 47,193.44
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Solution
The fourth proportional to 85,431.26, 117,894.67 and 47,193.44 is: 65,126.68
Step by Step Solution
- Step 1: Write the proportion equation
85,431.26 : 117,894.67 = 47,193.44 : x - Step 2: Convert to fraction form
85,431.26/117,894.67 = 47,193.44/x - Step 3: Cross multiply
85,431.26x = 117,894.67 × 47,193.44 - Step 4: Simplify right side
85,431.26x = 5,563,854,209.52 - Step 5: Solve for x
x = 5,563,854,209.52/85,431.26 - Step 6: Final answer
x = 65,126.68
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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.