Finding the Fourth Proportional to 87,346.48, 120,542.41 and 49,118.06
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Solution
The fourth proportional to 87,346.48, 120,542.41 and 49,118.06 is: 67,785.32
Step by Step Solution
- Step 1: Write the proportion equation
87,346.48 : 120,542.41 = 49,118.06 : x - Step 2: Convert to fraction form
87,346.48/120,542.41 = 49,118.06/x - Step 3: Cross multiply
87,346.48x = 120,542.41 × 49,118.06 - Step 4: Simplify right side
87,346.48x = 5,920,809,326.92 - Step 5: Solve for x
x = 5,920,809,326.92/87,346.48 - Step 6: Final answer
x = 67,785.32
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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.