Finding the Fourth Proportional to 91,007.20, 125,588.04 and 50,720.80
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Solution
The fourth proportional to 91,007.20, 125,588.04 and 50,720.80 is: 69,993.65
Step by Step Solution
- Step 1: Write the proportion equation
91,007.20 : 125,588.04 = 50,720.80 : x - Step 2: Convert to fraction form
91,007.20/125,588.04 = 50,720.80/x - Step 3: Cross multiply
91,007.20x = 125,588.04 × 50,720.80 - Step 4: Simplify right side
91,007.20x = 6,369,925,859.23 - Step 5: Solve for x
x = 6,369,925,859.23/91,007.20 - Step 6: Final answer
x = 69,993.65
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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.