Finding the Fourth Proportional to 75,967.20, 113,863.90 and 47,517.08
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Solution
The fourth proportional to 75,967.20, 113,863.90 and 47,517.08 is: 71,221.26
Step by Step Solution
- Step 1: Write the proportion equation
75,967.20 : 113,863.90 = 47,517.08 : x - Step 2: Convert to fraction form
75,967.20/113,863.90 = 47,517.08/x - Step 3: Cross multiply
75,967.20x = 113,863.90 × 47,517.08 - Step 4: Simplify right side
75,967.20x = 5,410,480,045.41 - Step 5: Solve for x
x = 5,410,480,045.41/75,967.20 - Step 6: Final answer
x = 71,221.26
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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.