Finding the Fourth Proportional to 79,159.14, 109,189.35 and 48,517.92
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Solution
The fourth proportional to 79,159.14, 109,189.35 and 48,517.92 is: 66,923.92
Step by Step Solution
- Step 1: Write the proportion equation
79,159.14 : 109,189.35 = 48,517.92 : x - Step 2: Convert to fraction form
79,159.14/109,189.35 = 48,517.92/x - Step 3: Cross multiply
79,159.14x = 109,189.35 × 48,517.92 - Step 4: Simplify right side
79,159.14x = 5,297,640,148.15 - Step 5: Solve for x
x = 5,297,640,148.15/79,159.14 - Step 6: Final answer
x = 66,923.92
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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.