Finding the Fourth Proportional to 115,809.41, 159,803.55 and 64,824.99
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Solution
The fourth proportional to 115,809.41, 159,803.55 and 64,824.99 is: 89,450.97
Step by Step Solution
- Step 1: Write the proportion equation
115,809.41 : 159,803.55 = 64,824.99 : x - Step 2: Convert to fraction form
115,809.41/159,803.55 = 64,824.99/x - Step 3: Cross multiply
115,809.41x = 159,803.55 × 64,824.99 - Step 4: Simplify right side
115,809.41x = 10,359,263,530.71 - Step 5: Solve for x
x = 10,359,263,530.71/115,809.41 - Step 6: Final answer
x = 89,450.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.