Finding the Fourth Proportional to 72,376.08, 108,570.60 and 19,785.84
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Solution
The fourth proportional to 72,376.08, 108,570.60 and 19,785.84 is: 29,680.53
Step by Step Solution
- Step 1: Write the proportion equation
72,376.08 : 108,570.60 = 19,785.84 : x - Step 2: Convert to fraction form
72,376.08/108,570.60 = 19,785.84/x - Step 3: Cross multiply
72,376.08x = 108,570.60 × 19,785.84 - Step 4: Simplify right side
72,376.08x = 2,148,160,520.30 - Step 5: Solve for x
x = 2,148,160,520.30/72,376.08 - Step 6: Final answer
x = 29,680.53
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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.