Finding the Fourth Proportional to 87,343.71, 120,534.80 and 49,619.31
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Solution
The fourth proportional to 87,343.71, 120,534.80 and 49,619.31 is: 68,474.92
Step by Step Solution
- Step 1: Write the proportion equation
87,343.71 : 120,534.80 = 49,619.31 : x - Step 2: Convert to fraction form
87,343.71/120,534.80 = 49,619.31/x - Step 3: Cross multiply
87,343.71x = 120,534.80 × 49,619.31 - Step 4: Simplify right side
87,343.71x = 5,980,853,358.89 - Step 5: Solve for x
x = 5,980,853,358.89/87,343.71 - Step 6: Final answer
x = 68,474.92
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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.