Finding the Fourth Proportional to 66,540.22, 91,825.72 and 42,666.99
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Solution
The fourth proportional to 66,540.22, 91,825.72 and 42,666.99 is: 58,880.58
Step by Step Solution
- Step 1: Write the proportion equation
66,540.22 : 91,825.72 = 42,666.99 : x - Step 2: Convert to fraction form
66,540.22/91,825.72 = 42,666.99/x - Step 3: Cross multiply
66,540.22x = 91,825.72 × 42,666.99 - Step 4: Simplify right side
66,540.22x = 3,917,927,076.98 - Step 5: Solve for x
x = 3,917,927,076.98/66,540.22 - Step 6: Final answer
x = 58,880.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.