Finding the Fourth Proportional to 103,635.58, 155,430.09 and 40,457.26
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Solution
The fourth proportional to 103,635.58, 155,430.09 and 40,457.26 is: 60,676.80
Step by Step Solution
- Step 1: Write the proportion equation
103,635.58 : 155,430.09 = 40,457.26 : x - Step 2: Convert to fraction form
103,635.58/155,430.09 = 40,457.26/x - Step 3: Cross multiply
103,635.58x = 155,430.09 × 40,457.26 - Step 4: Simplify right side
103,635.58x = 6,288,275,562.95 - Step 5: Solve for x
x = 6,288,275,562.95/103,635.58 - Step 6: Final answer
x = 60,676.80
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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.