Finding the Fourth Proportional to 79,076.87, 118,621.39 and 22,917.75
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Solution
The fourth proportional to 79,076.87, 118,621.39 and 22,917.75 is: 34,378.39
Step by Step Solution
- Step 1: Write the proportion equation
79,076.87 : 118,621.39 = 22,917.75 : x - Step 2: Convert to fraction form
79,076.87/118,621.39 = 22,917.75/x - Step 3: Cross multiply
79,076.87x = 118,621.39 × 22,917.75 - Step 4: Simplify right side
79,076.87x = 2,718,535,360.67 - Step 5: Solve for x
x = 2,718,535,360.67/79,076.87 - Step 6: Final answer
x = 34,378.39
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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.