Finding the Fourth Proportional to 86,674.68, 129,982.74 and 24,330.36
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Solution
The fourth proportional to 86,674.68, 129,982.74 and 24,330.36 is: 36,487.32
Step by Step Solution
- Step 1: Write the proportion equation
86,674.68 : 129,982.74 = 24,330.36 : x - Step 2: Convert to fraction form
86,674.68/129,982.74 = 24,330.36/x - Step 3: Cross multiply
86,674.68x = 129,982.74 × 24,330.36 - Step 4: Simplify right side
86,674.68x = 3,162,526,857.99 - Step 5: Solve for x
x = 3,162,526,857.99/86,674.68 - Step 6: Final answer
x = 36,487.32
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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.