Finding the Fourth Proportional to 87,245.07, 120,443.93 and 58,714.74
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Solution
The fourth proportional to 87,245.07, 120,443.93 and 58,714.74 is: 81,057.12
Step by Step Solution
- Step 1: Write the proportion equation
87,245.07 : 120,443.93 = 58,714.74 : x - Step 2: Convert to fraction form
87,245.07/120,443.93 = 58,714.74/x - Step 3: Cross multiply
87,245.07x = 120,443.93 × 58,714.74 - Step 4: Simplify right side
87,245.07x = 7,071,833,961.13 - Step 5: Solve for x
x = 7,071,833,961.13/87,245.07 - Step 6: Final answer
x = 81,057.12
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1.5x scale
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.