Finding the Fourth Proportional to 85,825.30, 128,706.36 and 29,650.99
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Solution
The fourth proportional to 85,825.30, 128,706.36 and 29,650.99 is: 44,465.57
Step by Step Solution
- Step 1: Write the proportion equation
85,825.30 : 128,706.36 = 29,650.99 : x - Step 2: Convert to fraction form
85,825.30/128,706.36 = 29,650.99/x - Step 3: Cross multiply
85,825.30x = 128,706.36 × 29,650.99 - Step 4: Simplify right side
85,825.30x = 3,816,270,993.30 - Step 5: Solve for x
x = 3,816,270,993.30/85,825.30 - Step 6: Final answer
x = 44,465.57
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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.