Finding the Fourth Proportional to 75,009.24, 112,415.45 and 55,195.02
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Solution
The fourth proportional to 75,009.24, 112,415.45 and 55,195.02 is: 82,720.11
Step by Step Solution
- Step 1: Write the proportion equation
75,009.24 : 112,415.45 = 55,195.02 : x - Step 2: Convert to fraction form
75,009.24/112,415.45 = 55,195.02/x - Step 3: Cross multiply
75,009.24x = 112,415.45 × 55,195.02 - Step 4: Simplify right side
75,009.24x = 6,204,772,735.08 - Step 5: Solve for x
x = 6,204,772,735.08/75,009.24 - Step 6: Final answer
x = 82,720.11
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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.