Finding the Fourth Proportional to 83,697.09, 115,502.79 and 45,456.99
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Solution
The fourth proportional to 83,697.09, 115,502.79 and 45,456.99 is: 62,731.08
Step by Step Solution
- Step 1: Write the proportion equation
83,697.09 : 115,502.79 = 45,456.99 : x - Step 2: Convert to fraction form
83,697.09/115,502.79 = 45,456.99/x - Step 3: Cross multiply
83,697.09x = 115,502.79 × 45,456.99 - Step 4: Simplify right side
83,697.09x = 5,250,409,170.00 - Step 5: Solve for x
x = 5,250,409,170.00/83,697.09 - Step 6: Final answer
x = 62,731.08
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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.