Finding the Fourth Proportional to 85,850.24, 128,609.30 and 48,296.20
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Solution
The fourth proportional to 85,850.24, 128,609.30 and 48,296.20 is: 72,350.88
Step by Step Solution
- Step 1: Write the proportion equation
85,850.24 : 128,609.30 = 48,296.20 : x - Step 2: Convert to fraction form
85,850.24/128,609.30 = 48,296.20/x - Step 3: Cross multiply
85,850.24x = 128,609.30 × 48,296.20 - Step 4: Simplify right side
85,850.24x = 6,211,340,474.66 - Step 5: Solve for x
x = 6,211,340,474.66/85,850.24 - Step 6: Final answer
x = 72,350.88
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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.