Finding the Fourth Proportional to 75,869.56, 104,699.99 and 41,878.05
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Solution
The fourth proportional to 75,869.56, 104,699.99 and 41,878.05 is: 57,791.71
Step by Step Solution
- Step 1: Write the proportion equation
75,869.56 : 104,699.99 = 41,878.05 : x - Step 2: Convert to fraction form
75,869.56/104,699.99 = 41,878.05/x - Step 3: Cross multiply
75,869.56x = 104,699.99 × 41,878.05 - Step 4: Simplify right side
75,869.56x = 4,384,631,416.22 - Step 5: Solve for x
x = 4,384,631,416.22/75,869.56 - Step 6: Final answer
x = 57,791.71
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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.