Finding the Fourth Proportional to 86,329.11, 129,493.49 and 27,169.95
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Solution
The fourth proportional to 86,329.11, 129,493.49 and 27,169.95 is: 40,754.87
Step by Step Solution
- Step 1: Write the proportion equation
86,329.11 : 129,493.49 = 27,169.95 : x - Step 2: Convert to fraction form
86,329.11/129,493.49 = 27,169.95/x - Step 3: Cross multiply
86,329.11x = 129,493.49 × 27,169.95 - Step 4: Simplify right side
86,329.11x = 3,518,331,512.78 - Step 5: Solve for x
x = 3,518,331,512.78/86,329.11 - Step 6: Final answer
x = 40,754.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.