Finding the Fourth Proportional to 75,239.66, 103,843.96 and 51,357.62
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Solution
The fourth proportional to 75,239.66, 103,843.96 and 51,357.62 is: 70,882.55
Step by Step Solution
- Step 1: Write the proportion equation
75,239.66 : 103,843.96 = 51,357.62 : x - Step 2: Convert to fraction form
75,239.66/103,843.96 = 51,357.62/x - Step 3: Cross multiply
75,239.66x = 103,843.96 × 51,357.62 - Step 4: Simplify right side
75,239.66x = 5,333,178,636.98 - Step 5: Solve for x
x = 5,333,178,636.98/75,239.66 - Step 6: Final answer
x = 70,882.55
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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.