Finding the Fourth Proportional to 83,689.30, 125,542.21 and 27,506.62
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Solution
The fourth proportional to 83,689.30, 125,542.21 and 27,506.62 is: 41,262.64
Step by Step Solution
- Step 1: Write the proportion equation
83,689.30 : 125,542.21 = 27,506.62 : x - Step 2: Convert to fraction form
83,689.30/125,542.21 = 27,506.62/x - Step 3: Cross multiply
83,689.30x = 125,542.21 × 27,506.62 - Step 4: Simplify right side
83,689.30x = 3,453,241,236.72 - Step 5: Solve for x
x = 3,453,241,236.72/83,689.30 - Step 6: Final answer
x = 41,262.64
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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.