Finding the Fourth Proportional to 76,887.36, 115,332.12 and 32,508.54
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Solution
The fourth proportional to 76,887.36, 115,332.12 and 32,508.54 is: 48,763.27
Step by Step Solution
- Step 1: Write the proportion equation
76,887.36 : 115,332.12 = 32,508.54 : x - Step 2: Convert to fraction form
76,887.36/115,332.12 = 32,508.54/x - Step 3: Cross multiply
76,887.36x = 115,332.12 × 32,508.54 - Step 4: Simplify right side
76,887.36x = 3,749,278,836.30 - Step 5: Solve for x
x = 3,749,278,836.30/76,887.36 - Step 6: Final answer
x = 48,763.27
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1.5x scale
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.