Finding the Fourth Proportional to 98,239.80, 147,382.74 and 39,078.84
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Solution
The fourth proportional to 98,239.80, 147,382.74 and 39,078.84 is: 58,627.43
Step by Step Solution
- Step 1: Write the proportion equation
98,239.80 : 147,382.74 = 39,078.84 : x - Step 2: Convert to fraction form
98,239.80/147,382.74 = 39,078.84/x - Step 3: Cross multiply
98,239.80x = 147,382.74 × 39,078.84 - Step 4: Simplify right side
98,239.80x = 5,759,546,515.22 - Step 5: Solve for x
x = 5,759,546,515.22/98,239.80 - Step 6: Final answer
x = 58,627.43
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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.