Finding the Fourth Proportional to 85,753.11, 118,343.51 and 51,761.05
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Solution
The fourth proportional to 85,753.11, 118,343.51 and 51,761.05 is: 71,432.80
Step by Step Solution
- Step 1: Write the proportion equation
85,753.11 : 118,343.51 = 51,761.05 : x - Step 2: Convert to fraction form
85,753.11/118,343.51 = 51,761.05/x - Step 3: Cross multiply
85,753.11x = 118,343.51 × 51,761.05 - Step 4: Simplify right side
85,753.11x = 6,125,584,569.44 - Step 5: Solve for x
x = 6,125,584,569.44/85,753.11 - Step 6: Final answer
x = 71,432.80
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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.