Finding the Fourth Proportional to 73,668.09, 101,661.98 and 40,134.09
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Solution
The fourth proportional to 73,668.09, 101,661.98 and 40,134.09 is: 55,385.05
Step by Step Solution
- Step 1: Write the proportion equation
73,668.09 : 101,661.98 = 40,134.09 : x - Step 2: Convert to fraction form
73,668.09/101,661.98 = 40,134.09/x - Step 3: Cross multiply
73,668.09x = 101,661.98 × 40,134.09 - Step 4: Simplify right side
73,668.09x = 4,080,110,854.23 - Step 5: Solve for x
x = 4,080,110,854.23/73,668.09 - Step 6: Final answer
x = 55,385.05
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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.