Finding the Fourth Proportional to 76,857.48, 115,358.10 and 47,332.92
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Solution
The fourth proportional to 76,857.48, 115,358.10 and 47,332.92 is: 71,043.65
Step by Step Solution
- Step 1: Write the proportion equation
76,857.48 : 115,358.10 = 47,332.92 : x - Step 2: Convert to fraction form
76,857.48/115,358.10 = 47,332.92/x - Step 3: Cross multiply
76,857.48x = 115,358.10 × 47,332.92 - Step 4: Simplify right side
76,857.48x = 5,460,235,718.65 - Step 5: Solve for x
x = 5,460,235,718.65/76,857.48 - Step 6: Final answer
x = 71,043.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.