Finding the Fourth Proportional to 76,917.48, 106,086.42 and 48,612.84
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Solution
The fourth proportional to 76,917.48, 106,086.42 and 48,612.84 is: 67,047.99
Step by Step Solution
- Step 1: Write the proportion equation
76,917.48 : 106,086.42 = 48,612.84 : x - Step 2: Convert to fraction form
76,917.48/106,086.42 = 48,612.84/x - Step 3: Cross multiply
76,917.48x = 106,086.42 × 48,612.84 - Step 4: Simplify right side
76,917.48x = 5,157,162,161.63 - Step 5: Solve for x
x = 5,157,162,161.63/76,917.48 - Step 6: Final answer
x = 67,047.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.