Finding the Fourth Proportional to 72,750.26, 100,394.97 and 40,918.48
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Solution
The fourth proportional to 72,750.26, 100,394.97 and 40,918.48 is: 56,467.28
Step by Step Solution
- Step 1: Write the proportion equation
72,750.26 : 100,394.97 = 40,918.48 : x - Step 2: Convert to fraction form
72,750.26/100,394.97 = 40,918.48/x - Step 3: Cross multiply
72,750.26x = 100,394.97 × 40,918.48 - Step 4: Simplify right side
72,750.26x = 4,108,009,572.05 - Step 5: Solve for x
x = 4,108,009,572.05/72,750.26 - Step 6: Final answer
x = 56,467.28
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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.