Finding the Fourth Proportional to 79,436.97, 109,625.94 and 47,599.70
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Solution
The fourth proportional to 79,436.97, 109,625.94 and 47,599.70 is: 65,689.33
Step by Step Solution
- Step 1: Write the proportion equation
79,436.97 : 109,625.94 = 47,599.70 : x - Step 2: Convert to fraction form
79,436.97/109,625.94 = 47,599.70/x - Step 3: Cross multiply
79,436.97x = 109,625.94 × 47,599.70 - Step 4: Simplify right side
79,436.97x = 5,218,161,308.09 - Step 5: Solve for x
x = 5,218,161,308.09/79,436.97 - Step 6: Final answer
x = 65,689.33
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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.