Finding the Fourth Proportional to 85,276.26, 117,713.66 and 64,116.99
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Solution
The fourth proportional to 85,276.26, 117,713.66 and 64,116.99 is: 88,505.82
Step by Step Solution
- Step 1: Write the proportion equation
85,276.26 : 117,713.66 = 64,116.99 : x - Step 2: Convert to fraction form
85,276.26/117,713.66 = 64,116.99/x - Step 3: Cross multiply
85,276.26x = 117,713.66 × 64,116.99 - Step 4: Simplify right side
85,276.26x = 7,547,445,561.08 - Step 5: Solve for x
x = 7,547,445,561.08/85,276.26 - Step 6: Final answer
x = 88,505.82
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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.