Finding the Fourth Proportional to 86,319.73, 119,112.71 and 48,078.00
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Solution
The fourth proportional to 86,319.73, 119,112.71 and 48,078.00 is: 66,342.89
Step by Step Solution
- Step 1: Write the proportion equation
86,319.73 : 119,112.71 = 48,078.00 : x - Step 2: Convert to fraction form
86,319.73/119,112.71 = 48,078.00/x - Step 3: Cross multiply
86,319.73x = 119,112.71 × 48,078.00 - Step 4: Simplify right side
86,319.73x = 5,726,700,396.01 - Step 5: Solve for x
x = 5,726,700,396.01/86,319.73 - Step 6: Final answer
x = 66,342.89
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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.