Finding the Fourth Proportional to 75,650.40, 104,395.68 and 42,115.68
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Solution
The fourth proportional to 75,650.40, 104,395.68 and 42,115.68 is: 58,118.60
Step by Step Solution
- Step 1: Write the proportion equation
75,650.40 : 104,395.68 = 42,115.68 : x - Step 2: Convert to fraction form
75,650.40/104,395.68 = 42,115.68/x - Step 3: Cross multiply
75,650.40x = 104,395.68 × 42,115.68 - Step 4: Simplify right side
75,650.40x = 4,396,695,052.26 - Step 5: Solve for x
x = 4,396,695,052.26/75,650.40 - Step 6: Final answer
x = 58,118.60
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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.