Finding the Fourth Proportional to 81,422.19, 122,107.37 and 34,037.19
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Solution
The fourth proportional to 81,422.19, 122,107.37 and 34,037.19 is: 51,044.95
Step by Step Solution
- Step 1: Write the proportion equation
81,422.19 : 122,107.37 = 34,037.19 : x - Step 2: Convert to fraction form
81,422.19/122,107.37 = 34,037.19/x - Step 3: Cross multiply
81,422.19x = 122,107.37 × 34,037.19 - Step 4: Simplify right side
81,422.19x = 4,156,191,582.90 - Step 5: Solve for x
x = 4,156,191,582.90/81,422.19 - Step 6: Final answer
x = 51,044.95
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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.