Finding the Fourth Proportional to 85,018.26, 117,326.18 and 48,718.99
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Solution
The fourth proportional to 85,018.26, 117,326.18 and 48,718.99 is: 67,232.77
Step by Step Solution
- Step 1: Write the proportion equation
85,018.26 : 117,326.18 = 48,718.99 : x - Step 2: Convert to fraction form
85,018.26/117,326.18 = 48,718.99/x - Step 3: Cross multiply
85,018.26x = 117,326.18 × 48,718.99 - Step 4: Simplify right side
85,018.26x = 5,716,012,879.54 - Step 5: Solve for x
x = 5,716,012,879.54/85,018.26 - Step 6: Final answer
x = 67,232.77
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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.