Finding the Fourth Proportional to 73,403.40, 110,109.29 and 20,808.75
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Solution
The fourth proportional to 73,403.40, 110,109.29 and 20,808.75 is: 31,214.31
Step by Step Solution
- Step 1: Write the proportion equation
73,403.40 : 110,109.29 = 20,808.75 : x - Step 2: Convert to fraction form
73,403.40/110,109.29 = 20,808.75/x - Step 3: Cross multiply
73,403.40x = 110,109.29 × 20,808.75 - Step 4: Simplify right side
73,403.40x = 2,291,236,584.24 - Step 5: Solve for x
x = 2,291,236,584.24/73,403.40 - Step 6: Final answer
x = 31,214.31
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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.