Finding the Fourth Proportional to 83,884.44, 115,830.56 and 55,715.88
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Solution
The fourth proportional to 83,884.44, 115,830.56 and 55,715.88 is: 76,934.43
Step by Step Solution
- Step 1: Write the proportion equation
83,884.44 : 115,830.56 = 55,715.88 : x - Step 2: Convert to fraction form
83,884.44/115,830.56 = 55,715.88/x - Step 3: Cross multiply
83,884.44x = 115,830.56 × 55,715.88 - Step 4: Simplify right side
83,884.44x = 6,453,601,581.29 - Step 5: Solve for x
x = 6,453,601,581.29/83,884.44 - Step 6: Final answer
x = 76,934.43
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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.