Finding the Fourth Proportional to 76,857.72, 115,283.70 and 24,270.36
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Solution
The fourth proportional to 76,857.72, 115,283.70 and 24,270.36 is: 36,404.63
Step by Step Solution
- Step 1: Write the proportion equation
76,857.72 : 115,283.70 = 24,270.36 : x - Step 2: Convert to fraction form
76,857.72/115,283.70 = 24,270.36/x - Step 3: Cross multiply
76,857.72x = 115,283.70 × 24,270.36 - Step 4: Simplify right side
76,857.72x = 2,797,976,901.13 - Step 5: Solve for x
x = 2,797,976,901.13/76,857.72 - Step 6: Final answer
x = 36,404.63
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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.