Finding the Fourth Proportional to 69,679.26, 104,518.86 and 19,759.79
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Solution
The fourth proportional to 69,679.26, 104,518.86 and 19,759.79 is: 29,639.67
Step by Step Solution
- Step 1: Write the proportion equation
69,679.26 : 104,518.86 = 19,759.79 : x - Step 2: Convert to fraction form
69,679.26/104,518.86 = 19,759.79/x - Step 3: Cross multiply
69,679.26x = 104,518.86 × 19,759.79 - Step 4: Simplify right side
69,679.26x = 2,065,270,202.05 - Step 5: Solve for x
x = 2,065,270,202.05/69,679.26 - Step 6: Final answer
x = 29,639.67
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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.