Finding the Fourth Proportional to 72,231.34, 108,349.85 and 22,306.99
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Solution
The fourth proportional to 72,231.34, 108,349.85 and 22,306.99 is: 33,461.36
Step by Step Solution
- Step 1: Write the proportion equation
72,231.34 : 108,349.85 = 22,306.99 : x - Step 2: Convert to fraction form
72,231.34/108,349.85 = 22,306.99/x - Step 3: Cross multiply
72,231.34x = 108,349.85 × 22,306.99 - Step 4: Simplify right side
72,231.34x = 2,416,959,020.45 - Step 5: Solve for x
x = 2,416,959,020.45/72,231.34 - Step 6: Final answer
x = 33,461.36
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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.