Finding the Fourth Proportional to 75,449.97, 113,626.32 and 68,724.03
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Solution
The fourth proportional to 75,449.97, 113,626.32 and 68,724.03 is: 103,497.17
Step by Step Solution
- Step 1: Write the proportion equation
75,449.97 : 113,626.32 = 68,724.03 : x - Step 2: Convert to fraction form
75,449.97/113,626.32 = 68,724.03/x - Step 3: Cross multiply
75,449.97x = 113,626.32 × 68,724.03 - Step 4: Simplify right side
75,449.97x = 7,808,858,624.47 - Step 5: Solve for x
x = 7,808,858,624.47/75,449.97 - Step 6: Final answer
x = 103,497.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.