Finding the Fourth Proportional to 115,769.79, 173,652.56 and 31,528.68
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Solution
The fourth proportional to 115,769.79, 173,652.56 and 31,528.68 is: 47,292.44
Step by Step Solution
- Step 1: Write the proportion equation
115,769.79 : 173,652.56 = 31,528.68 : x - Step 2: Convert to fraction form
115,769.79/173,652.56 = 31,528.68/x - Step 3: Cross multiply
115,769.79x = 173,652.56 × 31,528.68 - Step 4: Simplify right side
115,769.79x = 5,475,035,304.81 - Step 5: Solve for x
x = 5,475,035,304.81/115,769.79 - Step 6: Final answer
x = 47,292.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.