Finding the Fourth Proportional to 77,337.60, 115,991.76 and 27,415.68
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Solution
The fourth proportional to 77,337.60, 115,991.76 and 27,415.68 is: 41,118.33
Step by Step Solution
- Step 1: Write the proportion equation
77,337.60 : 115,991.76 = 27,415.68 : x - Step 2: Convert to fraction form
77,337.60/115,991.76 = 27,415.68/x - Step 3: Cross multiply
77,337.60x = 115,991.76 × 27,415.68 - Step 4: Simplify right side
77,337.60x = 3,179,992,974.80 - Step 5: Solve for x
x = 3,179,992,974.80/77,337.60 - Step 6: Final answer
x = 41,118.33
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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.