Finding the Fourth Proportional to 74,243.21, 111,369.36 and 29,869.92
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Solution
The fourth proportional to 74,243.21, 111,369.36 and 29,869.92 is: 44,806.71
Step by Step Solution
- Step 1: Write the proportion equation
74,243.21 : 111,369.36 = 29,869.92 : x - Step 2: Convert to fraction form
74,243.21/111,369.36 = 29,869.92/x - Step 3: Cross multiply
74,243.21x = 111,369.36 × 29,869.92 - Step 4: Simplify right side
74,243.21x = 3,326,593,985.66 - Step 5: Solve for x
x = 3,326,593,985.66/74,243.21 - Step 6: Final answer
x = 44,806.71
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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.