Finding the Fourth Proportional to 94,172.36, 129,958.79 and 51,730.92
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Solution
The fourth proportional to 94,172.36, 129,958.79 and 51,730.92 is: 71,389.18
Step by Step Solution
- Step 1: Write the proportion equation
94,172.36 : 129,958.79 = 51,730.92 : x - Step 2: Convert to fraction form
94,172.36/129,958.79 = 51,730.92/x - Step 3: Cross multiply
94,172.36x = 129,958.79 × 51,730.92 - Step 4: Simplify right side
94,172.36x = 6,722,887,510.13 - Step 5: Solve for x
x = 6,722,887,510.13/94,172.36 - Step 6: Final answer
x = 71,389.18
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1.5x scale
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.