Finding the Fourth Proportional to 83,684.24, 115,436.04 and 50,130.80
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Solution
The fourth proportional to 83,684.24, 115,436.04 and 50,130.80 is: 69,151.62
Step by Step Solution
- Step 1: Write the proportion equation
83,684.24 : 115,436.04 = 50,130.80 : x - Step 2: Convert to fraction form
83,684.24/115,436.04 = 50,130.80/x - Step 3: Cross multiply
83,684.24x = 115,436.04 × 50,130.80 - Step 4: Simplify right side
83,684.24x = 5,786,901,034.03 - Step 5: Solve for x
x = 5,786,901,034.03/83,684.24 - Step 6: Final answer
x = 69,151.62
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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.