Finding the Fourth Proportional to 74,562.91, 102,893.73 and 40,571.53
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Solution
The fourth proportional to 74,562.91, 102,893.73 and 40,571.53 is: 55,987.03
Step by Step Solution
- Step 1: Write the proportion equation
74,562.91 : 102,893.73 = 40,571.53 : x - Step 2: Convert to fraction form
74,562.91/102,893.73 = 40,571.53/x - Step 3: Cross multiply
74,562.91x = 102,893.73 × 40,571.53 - Step 4: Simplify right side
74,562.91x = 4,174,556,053.51 - Step 5: Solve for x
x = 4,174,556,053.51/74,562.91 - Step 6: Final answer
x = 55,987.03
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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.