Finding the Fourth Proportional to 83,721.78, 125,601.16 and 27,559.62
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Solution
The fourth proportional to 83,721.78, 125,601.16 and 27,559.62 is: 41,345.52
Step by Step Solution
- Step 1: Write the proportion equation
83,721.78 : 125,601.16 = 27,559.62 : x - Step 2: Convert to fraction form
83,721.78/125,601.16 = 27,559.62/x - Step 3: Cross multiply
83,721.78x = 125,601.16 × 27,559.62 - Step 4: Simplify right side
83,721.78x = 3,461,520,241.16 - Step 5: Solve for x
x = 3,461,520,241.16/83,721.78 - Step 6: Final answer
x = 41,345.52
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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.