Finding the Fourth Proportional to 115,477.38, 173,220.84 and 39,628.05
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Solution
The fourth proportional to 115,477.38, 173,220.84 and 39,628.05 is: 59,443.71
Step by Step Solution
- Step 1: Write the proportion equation
115,477.38 : 173,220.84 = 39,628.05 : x - Step 2: Convert to fraction form
115,477.38/173,220.84 = 39,628.05/x - Step 3: Cross multiply
115,477.38x = 173,220.84 × 39,628.05 - Step 4: Simplify right side
115,477.38x = 6,864,403,872.92 - Step 5: Solve for x
x = 6,864,403,872.92/115,477.38 - Step 6: Final answer
x = 59,443.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.