Finding the Fourth Proportional to 81,367.54, 122,130.11 and 39,277.17
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Solution
The fourth proportional to 81,367.54, 122,130.11 and 39,277.17 is: 58,953.80
Step by Step Solution
- Step 1: Write the proportion equation
81,367.54 : 122,130.11 = 39,277.17 : x - Step 2: Convert to fraction form
81,367.54/122,130.11 = 39,277.17/x - Step 3: Cross multiply
81,367.54x = 122,130.11 × 39,277.17 - Step 4: Simplify right side
81,367.54x = 4,796,925,190.78 - Step 5: Solve for x
x = 4,796,925,190.78/81,367.54 - Step 6: Final answer
x = 58,953.80
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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.