Finding the Fourth Proportional to 74,438.98, 102,732.09 and 40,911.94
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Solution
The fourth proportional to 74,438.98, 102,732.09 and 40,911.94 is: 56,461.94
Step by Step Solution
- Step 1: Write the proportion equation
74,438.98 : 102,732.09 = 40,911.94 : x - Step 2: Convert to fraction form
74,438.98/102,732.09 = 40,911.94/x - Step 3: Cross multiply
74,438.98x = 102,732.09 × 40,911.94 - Step 4: Simplify right side
74,438.98x = 4,202,969,102.15 - Step 5: Solve for x
x = 4,202,969,102.15/74,438.98 - Step 6: Final answer
x = 56,461.94
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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.