Finding the Fourth Proportional to 74,043.11, 110,964.01 and 31,313.02
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Solution
The fourth proportional to 74,043.11, 110,964.01 and 31,313.02 is: 46,926.96
Step by Step Solution
- Step 1: Write the proportion equation
74,043.11 : 110,964.01 = 31,313.02 : x - Step 2: Convert to fraction form
74,043.11/110,964.01 = 31,313.02/x - Step 3: Cross multiply
74,043.11x = 110,964.01 × 31,313.02 - Step 4: Simplify right side
74,043.11x = 3,474,618,151.55 - Step 5: Solve for x
x = 3,474,618,151.55/74,043.11 - Step 6: Final answer
x = 46,926.96
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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.