Finding the Fourth Proportional to 83,686.40, 125,537.88 and 27,503.74
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Solution
The fourth proportional to 83,686.40, 125,537.88 and 27,503.74 is: 41,258.33
Step by Step Solution
- Step 1: Write the proportion equation
83,686.40 : 125,537.88 = 27,503.74 : x - Step 2: Convert to fraction form
83,686.40/125,537.88 = 27,503.74/x - Step 3: Cross multiply
83,686.40x = 125,537.88 × 27,503.74 - Step 4: Simplify right side
83,686.40x = 3,452,761,211.67 - Step 5: Solve for x
x = 3,452,761,211.67/83,686.40 - Step 6: Final answer
x = 41,258.33
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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.