Finding the Fourth Proportional to 75,684.44, 113,604.42 and 72,885.08
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Solution
The fourth proportional to 75,684.44, 113,604.42 and 72,885.08 is: 109,402.50
Step by Step Solution
- Step 1: Write the proportion equation
75,684.44 : 113,604.42 = 72,885.08 : x - Step 2: Convert to fraction form
75,684.44/113,604.42 = 72,885.08/x - Step 3: Cross multiply
75,684.44x = 113,604.42 × 72,885.08 - Step 4: Simplify right side
75,684.44x = 8,280,067,240.05 - Step 5: Solve for x
x = 8,280,067,240.05/75,684.44 - Step 6: Final answer
x = 109,402.50
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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.