Finding the Fourth Proportional to 74,155.26, 102,334.02 and 40,163.67
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Solution
The fourth proportional to 74,155.26, 102,334.02 and 40,163.67 is: 55,425.74
Step by Step Solution
- Step 1: Write the proportion equation
74,155.26 : 102,334.02 = 40,163.67 : x - Step 2: Convert to fraction form
74,155.26/102,334.02 = 40,163.67/x - Step 3: Cross multiply
74,155.26x = 102,334.02 × 40,163.67 - Step 4: Simplify right side
74,155.26x = 4,110,109,809.05 - Step 5: Solve for x
x = 4,110,109,809.05/74,155.26 - Step 6: Final answer
x = 55,425.74
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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.