Finding the Fourth Proportional to 83,617.24, 115,392.72 and 45,890.68
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Solution
The fourth proportional to 83,617.24, 115,392.72 and 45,890.68 is: 63,329.65
Step by Step Solution
- Step 1: Write the proportion equation
83,617.24 : 115,392.72 = 45,890.68 : x - Step 2: Convert to fraction form
83,617.24/115,392.72 = 45,890.68/x - Step 3: Cross multiply
83,617.24x = 115,392.72 × 45,890.68 - Step 4: Simplify right side
83,617.24x = 5,295,450,387.85 - Step 5: Solve for x
x = 5,295,450,387.85/83,617.24 - Step 6: Final answer
x = 63,329.65
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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.