Finding the Fourth Proportional to 86,258.12, 129,347.50 and 44,734.28
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Solution
The fourth proportional to 86,258.12, 129,347.50 and 44,734.28 is: 67,080.84
Step by Step Solution
- Step 1: Write the proportion equation
86,258.12 : 129,347.50 = 44,734.28 : x - Step 2: Convert to fraction form
86,258.12/129,347.50 = 44,734.28/x - Step 3: Cross multiply
86,258.12x = 129,347.50 × 44,734.28 - Step 4: Simplify right side
86,258.12x = 5,786,267,282.30 - Step 5: Solve for x
x = 5,786,267,282.30/86,258.12 - Step 6: Final answer
x = 67,080.84
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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.