Finding the Fourth Proportional to 71,098.62, 106,647.57 and 18,508.02
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Solution
The fourth proportional to 71,098.62, 106,647.57 and 18,508.02 is: 27,761.94
Step by Step Solution
- Step 1: Write the proportion equation
71,098.62 : 106,647.57 = 18,508.02 : x - Step 2: Convert to fraction form
71,098.62/106,647.57 = 18,508.02/x - Step 3: Cross multiply
71,098.62x = 106,647.57 × 18,508.02 - Step 4: Simplify right side
71,098.62x = 1,973,835,358.51 - Step 5: Solve for x
x = 1,973,835,358.51/71,098.62 - Step 6: Final answer
x = 27,761.94
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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.