Finding the Fourth Proportional to 75,201.12, 112,801.68 and 19,797.12
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Solution
The fourth proportional to 75,201.12, 112,801.68 and 19,797.12 is: 29,695.68
Step by Step Solution
- Step 1: Write the proportion equation
75,201.12 : 112,801.68 = 19,797.12 : x - Step 2: Convert to fraction form
75,201.12/112,801.68 = 19,797.12/x - Step 3: Cross multiply
75,201.12x = 112,801.68 × 19,797.12 - Step 4: Simplify right side
75,201.12x = 2,233,148,395.16 - Step 5: Solve for x
x = 2,233,148,395.16/75,201.12 - Step 6: Final answer
x = 29,695.68
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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.