Finding the Fourth Proportional to 77,908.99, 116,883.20 and 21,749.06
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Solution
The fourth proportional to 77,908.99, 116,883.20 and 21,749.06 is: 32,629.09
Step by Step Solution
- Step 1: Write the proportion equation
77,908.99 : 116,883.20 = 21,749.06 : x - Step 2: Convert to fraction form
77,908.99/116,883.20 = 21,749.06/x - Step 3: Cross multiply
77,908.99x = 116,883.20 × 21,749.06 - Step 4: Simplify right side
77,908.99x = 2,542,099,036.63 - Step 5: Solve for x
x = 2,542,099,036.63/77,908.99 - Step 6: Final answer
x = 32,629.09
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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.