Finding the Fourth Proportional to 80,898.14, 121,350.84 and 30,965.28
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Solution
The fourth proportional to 80,898.14, 121,350.84 and 30,965.28 is: 46,449.31
Step by Step Solution
- Step 1: Write the proportion equation
80,898.14 : 121,350.84 = 30,965.28 : x - Step 2: Convert to fraction form
80,898.14/121,350.84 = 30,965.28/x - Step 3: Cross multiply
80,898.14x = 121,350.84 × 30,965.28 - Step 4: Simplify right side
80,898.14x = 3,757,662,738.84 - Step 5: Solve for x
x = 3,757,662,738.84/80,898.14 - Step 6: Final answer
x = 46,449.31
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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.