Finding the Fourth Proportional to 74,531.82, 102,854.25 and 40,540.44
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Solution
The fourth proportional to 74,531.82, 102,854.25 and 40,540.44 is: 55,945.99
Step by Step Solution
- Step 1: Write the proportion equation
74,531.82 : 102,854.25 = 40,540.44 : x - Step 2: Convert to fraction form
74,531.82/102,854.25 = 40,540.44/x - Step 3: Cross multiply
74,531.82x = 102,854.25 × 40,540.44 - Step 4: Simplify right side
74,531.82x = 4,169,756,550.87 - Step 5: Solve for x
x = 4,169,756,550.87/74,531.82 - Step 6: Final answer
x = 55,945.99
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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.