Finding the Fourth Proportional to 76,828.76, 115,241.98 and 46,851.80
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Solution
The fourth proportional to 76,828.76, 115,241.98 and 46,851.80 is: 70,276.99
Step by Step Solution
- Step 1: Write the proportion equation
76,828.76 : 115,241.98 = 46,851.80 : x - Step 2: Convert to fraction form
76,828.76/115,241.98 = 46,851.80/x - Step 3: Cross multiply
76,828.76x = 115,241.98 × 46,851.80 - Step 4: Simplify right side
76,828.76x = 5,399,294,198.56 - Step 5: Solve for x
x = 5,399,294,198.56/76,828.76 - Step 6: Final answer
x = 70,276.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.