Finding the Fourth Proportional to 87,803.98, 121,170.24 and 51,527.14
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Solution
The fourth proportional to 87,803.98, 121,170.24 and 51,527.14 is: 71,107.89
Step by Step Solution
- Step 1: Write the proportion equation
87,803.98 : 121,170.24 = 51,527.14 : x - Step 2: Convert to fraction form
87,803.98/121,170.24 = 51,527.14/x - Step 3: Cross multiply
87,803.98x = 121,170.24 × 51,527.14 - Step 4: Simplify right side
87,803.98x = 6,243,555,920.31 - Step 5: Solve for x
x = 6,243,555,920.31/87,803.98 - Step 6: Final answer
x = 71,107.89
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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.