Finding the Fourth Proportional to 87,784.50, 121,142.46 and 49,552.09
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Solution
The fourth proportional to 87,784.50, 121,142.46 and 49,552.09 is: 68,381.80
Step by Step Solution
- Step 1: Write the proportion equation
87,784.50 : 121,142.46 = 49,552.09 : x - Step 2: Convert to fraction form
87,784.50/121,142.46 = 49,552.09/x - Step 3: Cross multiply
87,784.50x = 121,142.46 × 49,552.09 - Step 4: Simplify right side
87,784.50x = 6,002,862,080.74 - Step 5: Solve for x
x = 6,002,862,080.74/87,784.50 - Step 6: Final answer
x = 68,381.80
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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.