Finding the Fourth Proportional to 83,894.12, 115,776.18 and 46,170.68
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Solution
The fourth proportional to 83,894.12, 115,776.18 and 46,170.68 is: 63,716.80
Step by Step Solution
- Step 1: Write the proportion equation
83,894.12 : 115,776.18 = 46,170.68 : x - Step 2: Convert to fraction form
83,894.12/115,776.18 = 46,170.68/x - Step 3: Cross multiply
83,894.12x = 115,776.18 × 46,170.68 - Step 4: Simplify right side
83,894.12x = 5,345,464,958.40 - Step 5: Solve for x
x = 5,345,464,958.40/83,894.12 - Step 6: Final answer
x = 63,716.80
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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.