Finding the Fourth Proportional to 72,402.26, 108,619.80 and 25,655.14
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Solution
The fourth proportional to 72,402.26, 108,619.80 and 25,655.14 is: 38,488.52
Step by Step Solution
- Step 1: Write the proportion equation
72,402.26 : 108,619.80 = 25,655.14 : x - Step 2: Convert to fraction form
72,402.26/108,619.80 = 25,655.14/x - Step 3: Cross multiply
72,402.26x = 108,619.80 × 25,655.14 - Step 4: Simplify right side
72,402.26x = 2,786,656,175.77 - Step 5: Solve for x
x = 2,786,656,175.77/72,402.26 - Step 6: Final answer
x = 38,488.52
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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.