Finding the Fourth Proportional to 73,842.63, 110,763.94 and 18,438.63
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Solution
The fourth proportional to 73,842.63, 110,763.94 and 18,438.63 is: 27,657.94
Step by Step Solution
- Step 1: Write the proportion equation
73,842.63 : 110,763.94 = 18,438.63 : x - Step 2: Convert to fraction form
73,842.63/110,763.94 = 18,438.63/x - Step 3: Cross multiply
73,842.63x = 110,763.94 × 18,438.63 - Step 4: Simplify right side
73,842.63x = 2,042,335,307.00 - Step 5: Solve for x
x = 2,042,335,307.00/73,842.63 - Step 6: Final answer
x = 27,657.94
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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.