Finding the Fourth Proportional to 76,937.87, 115,458.35 and 27,018.15
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Solution
The fourth proportional to 76,937.87, 115,458.35 and 27,018.15 is: 40,545.33
Step by Step Solution
- Step 1: Write the proportion equation
76,937.87 : 115,458.35 = 27,018.15 : x - Step 2: Convert to fraction form
76,937.87/115,458.35 = 27,018.15/x - Step 3: Cross multiply
76,937.87x = 115,458.35 × 27,018.15 - Step 4: Simplify right side
76,937.87x = 3,119,470,883.96 - Step 5: Solve for x
x = 3,119,470,883.96/76,937.87 - Step 6: Final answer
x = 40,545.33
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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.