Finding the Fourth Proportional to 84,018.24, 115,933.12 and 48,209.92
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Solution
The fourth proportional to 84,018.24, 115,933.12 and 48,209.92 is: 66,522.77
Step by Step Solution
- Step 1: Write the proportion equation
84,018.24 : 115,933.12 = 48,209.92 : x - Step 2: Convert to fraction form
84,018.24/115,933.12 = 48,209.92/x - Step 3: Cross multiply
84,018.24x = 115,933.12 × 48,209.92 - Step 4: Simplify right side
84,018.24x = 5,589,126,440.55 - Step 5: Solve for x
x = 5,589,126,440.55/84,018.24 - Step 6: Final answer
x = 66,522.77
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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.