Finding the Fourth Proportional to 75,528.80, 113,163.60 and 36,000.80
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Solution
The fourth proportional to 75,528.80, 113,163.60 and 36,000.80 is: 53,939.43
Step by Step Solution
- Step 1: Write the proportion equation
75,528.80 : 113,163.60 = 36,000.80 : x - Step 2: Convert to fraction form
75,528.80/113,163.60 = 36,000.80/x - Step 3: Cross multiply
75,528.80x = 113,163.60 × 36,000.80 - Step 4: Simplify right side
75,528.80x = 4,073,980,130.88 - Step 5: Solve for x
x = 4,073,980,130.88/75,528.80 - Step 6: Final answer
x = 53,939.43
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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.