Finding the Fourth Proportional to 84,121.95, 126,135.64 and 27,931.99
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Solution
The fourth proportional to 84,121.95, 126,135.64 and 27,931.99 is: 41,882.28
Step by Step Solution
- Step 1: Write the proportion equation
84,121.95 : 126,135.64 = 27,931.99 : x - Step 2: Convert to fraction form
84,121.95/126,135.64 = 27,931.99/x - Step 3: Cross multiply
84,121.95x = 126,135.64 × 27,931.99 - Step 4: Simplify right side
84,121.95x = 3,523,219,435.12 - Step 5: Solve for x
x = 3,523,219,435.12/84,121.95 - Step 6: Final answer
x = 41,882.28
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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.