Finding the Fourth Proportional to 72,818.90, 100,461.21 and 44,540.99
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Solution
The fourth proportional to 72,818.90, 100,461.21 and 44,540.99 is: 61,448.91
Step by Step Solution
- Step 1: Write the proportion equation
72,818.90 : 100,461.21 = 44,540.99 : x - Step 2: Convert to fraction form
72,818.90/100,461.21 = 44,540.99/x - Step 3: Cross multiply
72,818.90x = 100,461.21 × 44,540.99 - Step 4: Simplify right side
72,818.90x = 4,474,641,707.94 - Step 5: Solve for x
x = 4,474,641,707.94/72,818.90 - Step 6: Final answer
x = 61,448.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.