Finding the Fourth Proportional to 72,125.10, 108,187.68 and 19,534.62
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Solution
The fourth proportional to 72,125.10, 108,187.68 and 19,534.62 is: 29,301.94
Step by Step Solution
- Step 1: Write the proportion equation
72,125.10 : 108,187.68 = 19,534.62 : x - Step 2: Convert to fraction form
72,125.10/108,187.68 = 19,534.62/x - Step 3: Cross multiply
72,125.10x = 108,187.68 × 19,534.62 - Step 4: Simplify right side
72,125.10x = 2,113,405,217.48 - Step 5: Solve for x
x = 2,113,405,217.48/72,125.10 - Step 6: Final answer
x = 29,301.94
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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.