Finding the Fourth Proportional to 71,633.25, 107,407.92 and 27,263.28
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Solution
The fourth proportional to 71,633.25, 107,407.92 and 27,263.28 is: 40,878.95
Step by Step Solution
- Step 1: Write the proportion equation
71,633.25 : 107,407.92 = 27,263.28 : x - Step 2: Convert to fraction form
71,633.25/107,407.92 = 27,263.28/x - Step 3: Cross multiply
71,633.25x = 107,407.92 × 27,263.28 - Step 4: Simplify right side
71,633.25x = 2,928,292,197.18 - Step 5: Solve for x
x = 2,928,292,197.18/71,633.25 - Step 6: Final answer
x = 40,878.95
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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.