Finding the Fourth Proportional to 87,758.96, 121,107.65 and 47,473.07
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Solution
The fourth proportional to 87,758.96, 121,107.65 and 47,473.07 is: 65,512.99
Step by Step Solution
- Step 1: Write the proportion equation
87,758.96 : 121,107.65 = 47,473.07 : x - Step 2: Convert to fraction form
87,758.96/121,107.65 = 47,473.07/x - Step 3: Cross multiply
87,758.96x = 121,107.65 × 47,473.07 - Step 4: Simplify right side
87,758.96x = 5,749,351,103.08 - Step 5: Solve for x
x = 5,749,351,103.08/87,758.96 - Step 6: Final answer
x = 65,512.99
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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.