Finding the Fourth Proportional to 74,361.95, 102,620.27 and 40,370.75
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Solution
The fourth proportional to 74,361.95, 102,620.27 and 40,370.75 is: 55,712.05
Step by Step Solution
- Step 1: Write the proportion equation
74,361.95 : 102,620.27 = 40,370.75 : x - Step 2: Convert to fraction form
74,361.95/102,620.27 = 40,370.75/x - Step 3: Cross multiply
74,361.95x = 102,620.27 × 40,370.75 - Step 4: Simplify right side
74,361.95x = 4,142,856,550.15 - Step 5: Solve for x
x = 4,142,856,550.15/74,361.95 - Step 6: Final answer
x = 55,712.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.