Finding the Fourth Proportional to 74,950.49, 103,433.18 and 40,961.09
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Solution
The fourth proportional to 74,950.49, 103,433.18 and 40,961.09 is: 56,527.12
Step by Step Solution
- Step 1: Write the proportion equation
74,950.49 : 103,433.18 = 40,961.09 : x - Step 2: Convert to fraction form
74,950.49/103,433.18 = 40,961.09/x - Step 3: Cross multiply
74,950.49x = 103,433.18 × 40,961.09 - Step 4: Simplify right side
74,950.49x = 4,236,735,848.74 - Step 5: Solve for x
x = 4,236,735,848.74/74,950.49 - Step 6: Final answer
x = 56,527.12
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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.