Finding the Fourth Proportional to 80,350.84, 120,407.58 and 75,857.68
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Solution
The fourth proportional to 80,350.84, 120,407.58 and 75,857.68 is: 113,674.48
Step by Step Solution
- Step 1: Write the proportion equation
80,350.84 : 120,407.58 = 75,857.68 : x - Step 2: Convert to fraction form
80,350.84/120,407.58 = 75,857.68/x - Step 3: Cross multiply
80,350.84x = 120,407.58 × 75,857.68 - Step 4: Simplify right side
80,350.84x = 9,133,839,673.21 - Step 5: Solve for x
x = 9,133,839,673.21/80,350.84 - Step 6: Final answer
x = 113,674.48
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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.