Finding the Fourth Proportional to 73,267.20, 101,107.80 and 39,733.20
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Solution
The fourth proportional to 73,267.20, 101,107.80 and 39,733.20 is: 54,831.31
Step by Step Solution
- Step 1: Write the proportion equation
73,267.20 : 101,107.80 = 39,733.20 : x - Step 2: Convert to fraction form
73,267.20/101,107.80 = 39,733.20/x - Step 3: Cross multiply
73,267.20x = 101,107.80 × 39,733.20 - Step 4: Simplify right side
73,267.20x = 4,017,336,438.96 - Step 5: Solve for x
x = 4,017,336,438.96/73,267.20 - Step 6: Final answer
x = 54,831.31
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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.