Finding the Fourth Proportional to 76,054.20, 113,862.60 and 46,529.70
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Solution
The fourth proportional to 76,054.20, 113,862.60 and 46,529.70 is: 69,660.75
Step by Step Solution
- Step 1: Write the proportion equation
76,054.20 : 113,862.60 = 46,529.70 : x - Step 2: Convert to fraction form
76,054.20/113,862.60 = 46,529.70/x - Step 3: Cross multiply
76,054.20x = 113,862.60 × 46,529.70 - Step 4: Simplify right side
76,054.20x = 5,297,992,619.22 - Step 5: Solve for x
x = 5,297,992,619.22/76,054.20 - Step 6: Final answer
x = 69,660.75
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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.