Finding the Fourth Proportional to 79,190.06, 109,286.21 and 48,991.08
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Solution
The fourth proportional to 79,190.06, 109,286.21 and 48,991.08 is: 67,610.12
Step by Step Solution
- Step 1: Write the proportion equation
79,190.06 : 109,286.21 = 48,991.08 : x - Step 2: Convert to fraction form
79,190.06/109,286.21 = 48,991.08/x - Step 3: Cross multiply
79,190.06x = 109,286.21 × 48,991.08 - Step 4: Simplify right side
79,190.06x = 5,354,049,374.57 - Step 5: Solve for x
x = 5,354,049,374.57/79,190.06 - Step 6: Final answer
x = 67,610.12
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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.