Finding the Fourth Proportional to 75,350.40, 113,025.60 and 57,635.70
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Solution
The fourth proportional to 75,350.40, 113,025.60 and 57,635.70 is: 86,453.55
Step by Step Solution
- Step 1: Write the proportion equation
75,350.40 : 113,025.60 = 57,635.70 : x - Step 2: Convert to fraction form
75,350.40/113,025.60 = 57,635.70/x - Step 3: Cross multiply
75,350.40x = 113,025.60 × 57,635.70 - Step 4: Simplify right side
75,350.40x = 6,514,309,573.92 - Step 5: Solve for x
x = 6,514,309,573.92/75,350.40 - Step 6: Final answer
x = 86,453.55
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1.5x scale
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.