Finding the Fourth Proportional to 87,696.09, 121,021.86 and 49,457.46
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Solution
The fourth proportional to 87,696.09, 121,021.86 and 49,457.46 is: 68,252.00
Step by Step Solution
- Step 1: Write the proportion equation
87,696.09 : 121,021.86 = 49,457.46 : x - Step 2: Convert to fraction form
87,696.09/121,021.86 = 49,457.46/x - Step 3: Cross multiply
87,696.09x = 121,021.86 × 49,457.46 - Step 4: Simplify right side
87,696.09x = 5,985,433,800.08 - Step 5: Solve for x
x = 5,985,433,800.08/87,696.09 - Step 6: Final answer
x = 68,252.00
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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.