Finding the Fourth Proportional to 80,740.17, 121,110.84 and 30,806.82
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Solution
The fourth proportional to 80,740.17, 121,110.84 and 30,806.82 is: 46,210.45
Step by Step Solution
- Step 1: Write the proportion equation
80,740.17 : 121,110.84 = 30,806.82 : x - Step 2: Convert to fraction form
80,740.17/121,110.84 = 30,806.82/x - Step 3: Cross multiply
80,740.17x = 121,110.84 × 30,806.82 - Step 4: Simplify right side
80,740.17x = 3,731,039,847.93 - Step 5: Solve for x
x = 3,731,039,847.93/80,740.17 - Step 6: Final answer
x = 46,210.45
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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.