Finding the Fourth Proportional to 76,812.80, 115,192.80 and 37,344.48
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Solution
The fourth proportional to 76,812.80, 115,192.80 and 37,344.48 is: 56,003.88
Step by Step Solution
- Step 1: Write the proportion equation
76,812.80 : 115,192.80 = 37,344.48 : x - Step 2: Convert to fraction form
76,812.80/115,192.80 = 37,344.48/x - Step 3: Cross multiply
76,812.80x = 115,192.80 × 37,344.48 - Step 4: Simplify right side
76,812.80x = 4,301,815,215.74 - Step 5: Solve for x
x = 4,301,815,215.74/76,812.80 - Step 6: Final answer
x = 56,003.88
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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.