Finding the Fourth Proportional to 87,727.25, 121,063.31 and 47,440.99
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Solution
The fourth proportional to 87,727.25, 121,063.31 and 47,440.99 is: 65,468.41
Step by Step Solution
- Step 1: Write the proportion equation
87,727.25 : 121,063.31 = 47,440.99 : x - Step 2: Convert to fraction form
87,727.25/121,063.31 = 47,440.99/x - Step 3: Cross multiply
87,727.25x = 121,063.31 × 47,440.99 - Step 4: Simplify right side
87,727.25x = 5,743,363,371.10 - Step 5: Solve for x
x = 5,743,363,371.10/87,727.25 - Step 6: Final answer
x = 65,468.41
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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.