Finding the Fourth Proportional to 71,238.38, 106,818.08 and 29,147.99
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Solution
The fourth proportional to 71,238.38, 106,818.08 and 29,147.99 is: 43,705.83
Step by Step Solution
- Step 1: Write the proportion equation
71,238.38 : 106,818.08 = 29,147.99 : x - Step 2: Convert to fraction form
71,238.38/106,818.08 = 29,147.99/x - Step 3: Cross multiply
71,238.38x = 106,818.08 × 29,147.99 - Step 4: Simplify right side
71,238.38x = 3,113,532,448.96 - Step 5: Solve for x
x = 3,113,532,448.96/71,238.38 - Step 6: Final answer
x = 43,705.83
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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.