Finding the Fourth Proportional to 75,986.63, 104,866.52 and 50,453.02
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Solution
The fourth proportional to 75,986.63, 104,866.52 and 50,453.02 is: 69,628.47
Step by Step Solution
- Step 1: Write the proportion equation
75,986.63 : 104,866.52 = 50,453.02 : x - Step 2: Convert to fraction form
75,986.63/104,866.52 = 50,453.02/x - Step 3: Cross multiply
75,986.63x = 104,866.52 × 50,453.02 - Step 4: Simplify right side
75,986.63x = 5,290,832,630.89 - Step 5: Solve for x
x = 5,290,832,630.89/75,986.63 - Step 6: Final answer
x = 69,628.47
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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.