Finding the Fourth Proportional to 89,819.49, 123,949.26 and 49,536.99
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Solution
The fourth proportional to 89,819.49, 123,949.26 and 49,536.99 is: 68,360.14
Step by Step Solution
- Step 1: Write the proportion equation
89,819.49 : 123,949.26 = 49,536.99 : x - Step 2: Convert to fraction form
89,819.49/123,949.26 = 49,536.99/x - Step 3: Cross multiply
89,819.49x = 123,949.26 × 49,536.99 - Step 4: Simplify right side
89,819.49x = 6,140,073,253.13 - Step 5: Solve for x
x = 6,140,073,253.13/89,819.49 - Step 6: Final answer
x = 68,360.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.