Finding the Fourth Proportional to 74,571.37, 102,908.51 and 40,579.99
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Solution
The fourth proportional to 74,571.37, 102,908.51 and 40,579.99 is: 56,000.39
Step by Step Solution
- Step 1: Write the proportion equation
74,571.37 : 102,908.51 = 40,579.99 : x - Step 2: Convert to fraction form
74,571.37/102,908.51 = 40,579.99/x - Step 3: Cross multiply
74,571.37x = 102,908.51 × 40,579.99 - Step 4: Simplify right side
74,571.37x = 4,176,025,998.72 - Step 5: Solve for x
x = 4,176,025,998.72/74,571.37 - Step 6: Final answer
x = 56,000.39
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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.