Finding the Fourth Proportional to 81,801.23, 122,704.59 and 22,631.95
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Solution
The fourth proportional to 81,801.23, 122,704.59 and 22,631.95 is: 33,948.68
Step by Step Solution
- Step 1: Write the proportion equation
81,801.23 : 122,704.59 = 22,631.95 : x - Step 2: Convert to fraction form
81,801.23/122,704.59 = 22,631.95/x - Step 3: Cross multiply
81,801.23x = 122,704.59 × 22,631.95 - Step 4: Simplify right side
81,801.23x = 2,777,043,532.13 - Step 5: Solve for x
x = 2,777,043,532.13/81,801.23 - Step 6: Final answer
x = 33,948.68
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1.5x scale
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.