Finding the Fourth Proportional to 75,231.76, 103,817.28 and 43,399.84
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Solution
The fourth proportional to 75,231.76, 103,817.28 and 43,399.84 is: 59,890.31
Step by Step Solution
- Step 1: Write the proportion equation
75,231.76 : 103,817.28 = 43,399.84 : x - Step 2: Convert to fraction form
75,231.76/103,817.28 = 43,399.84/x - Step 3: Cross multiply
75,231.76x = 103,817.28 × 43,399.84 - Step 4: Simplify right side
75,231.76x = 4,505,653,341.24 - Step 5: Solve for x
x = 4,505,653,341.24/75,231.76 - Step 6: Final answer
x = 59,890.31
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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.