Finding the Fourth Proportional to 71,220.76, 106,755.81 and 26,828.31
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Solution
The fourth proportional to 71,220.76, 106,755.81 and 26,828.31 is: 40,214.09
Step by Step Solution
- Step 1: Write the proportion equation
71,220.76 : 106,755.81 = 26,828.31 : x - Step 2: Convert to fraction form
71,220.76/106,755.81 = 26,828.31/x - Step 3: Cross multiply
71,220.76x = 106,755.81 × 26,828.31 - Step 4: Simplify right side
71,220.76x = 2,864,077,964.98 - Step 5: Solve for x
x = 2,864,077,964.98/71,220.76 - Step 6: Final answer
x = 40,214.09
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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.