Finding the Fourth Proportional to 80,128.26, 120,126.51 and 46,765.98
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Solution
The fourth proportional to 80,128.26, 120,126.51 and 46,765.98 is: 70,110.52
Step by Step Solution
- Step 1: Write the proportion equation
80,128.26 : 120,126.51 = 46,765.98 : x - Step 2: Convert to fraction form
80,128.26/120,126.51 = 46,765.98/x - Step 3: Cross multiply
80,128.26x = 120,126.51 × 46,765.98 - Step 4: Simplify right side
80,128.26x = 5,617,833,964.13 - Step 5: Solve for x
x = 5,617,833,964.13/80,128.26 - Step 6: Final answer
x = 70,110.52
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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.