Finding the Fourth Proportional to 75,639.08, 104,380.82 and 42,105.08
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Solution
The fourth proportional to 75,639.08, 104,380.82 and 42,105.08 is: 58,104.39
Step by Step Solution
- Step 1: Write the proportion equation
75,639.08 : 104,380.82 = 42,105.08 : x - Step 2: Convert to fraction form
75,639.08/104,380.82 = 42,105.08/x - Step 3: Cross multiply
75,639.08x = 104,380.82 × 42,105.08 - Step 4: Simplify right side
75,639.08x = 4,394,962,776.57 - Step 5: Solve for x
x = 4,394,962,776.57/75,639.08 - Step 6: Final answer
x = 58,104.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.