Finding the Fourth Proportional to 86,507.23, 129,714.58 and 44,370.12
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Solution
The fourth proportional to 86,507.23, 129,714.58 and 44,370.12 is: 66,531.45
Step by Step Solution
- Step 1: Write the proportion equation
86,507.23 : 129,714.58 = 44,370.12 : x - Step 2: Convert to fraction form
86,507.23/129,714.58 = 44,370.12/x - Step 3: Cross multiply
86,507.23x = 129,714.58 × 44,370.12 - Step 4: Simplify right side
86,507.23x = 5,755,451,480.35 - Step 5: Solve for x
x = 5,755,451,480.35/86,507.23 - Step 6: Final answer
x = 66,531.45
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1.5x scale
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.