Finding the Fourth Proportional to 75,237.31, 112,854.84 and 18,311.41
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Solution
The fourth proportional to 75,237.31, 112,854.84 and 18,311.41 is: 27,466.84
Step by Step Solution
- Step 1: Write the proportion equation
75,237.31 : 112,854.84 = 18,311.41 : x - Step 2: Convert to fraction form
75,237.31/112,854.84 = 18,311.41/x - Step 3: Cross multiply
75,237.31x = 112,854.84 × 18,311.41 - Step 4: Simplify right side
75,237.31x = 2,066,531,245.72 - Step 5: Solve for x
x = 2,066,531,245.72/75,237.31 - Step 6: Final answer
x = 27,466.84
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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.