Finding the Fourth Proportional to 74,756.94, 103,163.76 and 40,765.32
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Solution
The fourth proportional to 74,756.94, 103,163.76 and 40,765.32 is: 56,255.70
Step by Step Solution
- Step 1: Write the proportion equation
74,756.94 : 103,163.76 = 40,765.32 : x - Step 2: Convert to fraction form
74,756.94/103,163.76 = 40,765.32/x - Step 3: Cross multiply
74,756.94x = 103,163.76 × 40,765.32 - Step 4: Simplify right side
74,756.94x = 4,205,503,688.80 - Step 5: Solve for x
x = 4,205,503,688.80/74,756.94 - Step 6: Final answer
x = 56,255.70
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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.