Finding the Fourth Proportional to 79,408.35, 109,583.28 and 43,600.68
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Solution
The fourth proportional to 79,408.35, 109,583.28 and 43,600.68 is: 60,168.80
Step by Step Solution
- Step 1: Write the proportion equation
79,408.35 : 109,583.28 = 43,600.68 : x - Step 2: Convert to fraction form
79,408.35/109,583.28 = 43,600.68/x - Step 3: Cross multiply
79,408.35x = 109,583.28 × 43,600.68 - Step 4: Simplify right side
79,408.35x = 4,777,905,524.63 - Step 5: Solve for x
x = 4,777,905,524.63/79,408.35 - Step 6: Final answer
x = 60,168.80
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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.