Finding the Fourth Proportional to 85,201.20, 117,578.14 and 49,412.44
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Solution
The fourth proportional to 85,201.20, 117,578.14 and 49,412.44 is: 68,189.45
Step by Step Solution
- Step 1: Write the proportion equation
85,201.20 : 117,578.14 = 49,412.44 : x - Step 2: Convert to fraction form
85,201.20/117,578.14 = 49,412.44/x - Step 3: Cross multiply
85,201.20x = 117,578.14 × 49,412.44 - Step 4: Simplify right side
85,201.20x = 5,809,822,788.06 - Step 5: Solve for x
x = 5,809,822,788.06/85,201.20 - Step 6: Final answer
x = 68,189.45
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1.5x scale
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.