Finding the Fourth Proportional to 73,845.05, 110,772.45 and 21,254.99
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Solution
The fourth proportional to 73,845.05, 110,772.45 and 21,254.99 is: 31,883.88
Step by Step Solution
- Step 1: Write the proportion equation
73,845.05 : 110,772.45 = 21,254.99 : x - Step 2: Convert to fraction form
73,845.05/110,772.45 = 21,254.99/x - Step 3: Cross multiply
73,845.05x = 110,772.45 × 21,254.99 - Step 4: Simplify right side
73,845.05x = 2,354,466,763.16 - Step 5: Solve for x
x = 2,354,466,763.16/73,845.05 - Step 6: Final answer
x = 31,883.88
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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.