Finding the Fourth Proportional to 74,562.78, 102,895.11 and 40,571.94
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Solution
The fourth proportional to 74,562.78, 102,895.11 and 40,571.94 is: 55,988.45
Step by Step Solution
- Step 1: Write the proportion equation
74,562.78 : 102,895.11 = 40,571.94 : x - Step 2: Convert to fraction form
74,562.78/102,895.11 = 40,571.94/x - Step 3: Cross multiply
74,562.78x = 102,895.11 × 40,571.94 - Step 4: Simplify right side
74,562.78x = 4,174,654,229.21 - Step 5: Solve for x
x = 4,174,654,229.21/74,562.78 - Step 6: Final answer
x = 55,988.45
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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.