Finding the Fourth Proportional to 86,471.40, 129,707.58 and 24,142.44
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Solution
The fourth proportional to 86,471.40, 129,707.58 and 24,142.44 is: 36,213.79
Step by Step Solution
- Step 1: Write the proportion equation
86,471.40 : 129,707.58 = 24,142.44 : x - Step 2: Convert to fraction form
86,471.40/129,707.58 = 24,142.44/x - Step 3: Cross multiply
86,471.40x = 129,707.58 × 24,142.44 - Step 4: Simplify right side
86,471.40x = 3,131,457,467.70 - Step 5: Solve for x
x = 3,131,457,467.70/86,471.40 - Step 6: Final answer
x = 36,213.79
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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.