Finding the Fourth Proportional to 76,965.53, 115,465.59 and 27,049.05
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Solution
The fourth proportional to 76,965.53, 115,465.59 and 27,049.05 is: 40,579.66
Step by Step Solution
- Step 1: Write the proportion equation
76,965.53 : 115,465.59 = 27,049.05 : x - Step 2: Convert to fraction form
76,965.53/115,465.59 = 27,049.05/x - Step 3: Cross multiply
76,965.53x = 115,465.59 × 27,049.05 - Step 4: Simplify right side
76,965.53x = 3,123,234,517.19 - Step 5: Solve for x
x = 3,123,234,517.19/76,965.53 - Step 6: Final answer
x = 40,579.66
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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.