Finding the Fourth Proportional to 76,579.08, 114,580.08 and 68,809.56
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Solution
The fourth proportional to 76,579.08, 114,580.08 and 68,809.56 is: 102,955.07
Step by Step Solution
- Step 1: Write the proportion equation
76,579.08 : 114,580.08 = 68,809.56 : x - Step 2: Convert to fraction form
76,579.08/114,580.08 = 68,809.56/x - Step 3: Cross multiply
76,579.08x = 114,580.08 × 68,809.56 - Step 4: Simplify right side
76,579.08x = 7,884,204,889.56 - Step 5: Solve for x
x = 7,884,204,889.56/76,579.08 - Step 6: Final answer
x = 102,955.07
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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.