Finding the Fourth Proportional to 73,842.68, 110,759.16 and 18,438.68
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Solution
The fourth proportional to 73,842.68, 110,759.16 and 18,438.68 is: 27,656.81
Step by Step Solution
- Step 1: Write the proportion equation
73,842.68 : 110,759.16 = 18,438.68 : x - Step 2: Convert to fraction form
73,842.68/110,759.16 = 18,438.68/x - Step 3: Cross multiply
73,842.68x = 110,759.16 × 18,438.68 - Step 4: Simplify right side
73,842.68x = 2,042,252,708.31 - Step 5: Solve for x
x = 2,042,252,708.31/73,842.68 - Step 6: Final answer
x = 27,656.81
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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.