Finding the Fourth Proportional to 71,235.38, 106,813.58 and 29,144.99
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Solution
The fourth proportional to 71,235.38, 106,813.58 and 29,144.99 is: 43,701.33
Step by Step Solution
- Step 1: Write the proportion equation
71,235.38 : 106,813.58 = 29,144.99 : x - Step 2: Convert to fraction form
71,235.38/106,813.58 = 29,144.99/x - Step 3: Cross multiply
71,235.38x = 106,813.58 × 29,144.99 - Step 4: Simplify right side
71,235.38x = 3,113,080,842.27 - Step 5: Solve for x
x = 3,113,080,842.27/71,235.38 - Step 6: Final answer
x = 43,701.33
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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.