Finding the Fourth Proportional to 115,209.30, 172,832.14 and 40,327.62
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Solution
The fourth proportional to 115,209.30, 172,832.14 and 40,327.62 is: 60,497.80
Step by Step Solution
- Step 1: Write the proportion equation
115,209.30 : 172,832.14 = 40,327.62 : x - Step 2: Convert to fraction form
115,209.30/172,832.14 = 40,327.62/x - Step 3: Cross multiply
115,209.30x = 172,832.14 × 40,327.62 - Step 4: Simplify right side
115,209.30x = 6,969,908,865.71 - Step 5: Solve for x
x = 6,969,908,865.71/115,209.30 - Step 6: Final answer
x = 60,497.80
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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.