Finding the Fourth Proportional to 74,040.40, 110,842.44 and 47,666.80
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Solution
The fourth proportional to 74,040.40, 110,842.44 and 47,666.80 is: 71,359.75
Step by Step Solution
- Step 1: Write the proportion equation
74,040.40 : 110,842.44 = 47,666.80 : x - Step 2: Convert to fraction form
74,040.40/110,842.44 = 47,666.80/x - Step 3: Cross multiply
74,040.40x = 110,842.44 × 47,666.80 - Step 4: Simplify right side
74,040.40x = 5,283,504,418.99 - Step 5: Solve for x
x = 5,283,504,418.99/74,040.40 - Step 6: Final answer
x = 71,359.75
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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.