Finding the Fourth Proportional to 72,376.84, 108,556.62 and 19,790.92
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Solution
The fourth proportional to 72,376.84, 108,556.62 and 19,790.92 is: 29,684.02
Step by Step Solution
- Step 1: Write the proportion equation
72,376.84 : 108,556.62 = 19,790.92 : x - Step 2: Convert to fraction form
72,376.84/108,556.62 = 19,790.92/x - Step 3: Cross multiply
72,376.84x = 108,556.62 × 19,790.92 - Step 4: Simplify right side
72,376.84x = 2,148,435,381.89 - Step 5: Solve for x
x = 2,148,435,381.89/72,376.84 - Step 6: Final answer
x = 29,684.02
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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.