Finding the Fourth Proportional to 76,403.26, 114,578.93 and 26,471.70
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Solution
The fourth proportional to 76,403.26, 114,578.93 and 26,471.70 is: 39,698.56
Step by Step Solution
- Step 1: Write the proportion equation
76,403.26 : 114,578.93 = 26,471.70 : x - Step 2: Convert to fraction form
76,403.26/114,578.93 = 26,471.70/x - Step 3: Cross multiply
76,403.26x = 114,578.93 × 26,471.70 - Step 4: Simplify right side
76,403.26x = 3,033,098,978.56 - Step 5: Solve for x
x = 3,033,098,978.56/76,403.26 - Step 6: Final answer
x = 39,698.56
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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.