Finding the Fourth Proportional to 85,207.06, 117,566.79 and 48,906.28
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Solution
The fourth proportional to 85,207.06, 117,566.79 and 48,906.28 is: 67,479.79
Step by Step Solution
- Step 1: Write the proportion equation
85,207.06 : 117,566.79 = 48,906.28 : x - Step 2: Convert to fraction form
85,207.06/117,566.79 = 48,906.28/x - Step 3: Cross multiply
85,207.06x = 117,566.79 × 48,906.28 - Step 4: Simplify right side
85,207.06x = 5,749,754,589.10 - Step 5: Solve for x
x = 5,749,754,589.10/85,207.06 - Step 6: Final answer
x = 67,479.79
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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.