Finding the Fourth Proportional to 87,090.96, 130,624.16 and 27,918.96
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Solution
The fourth proportional to 87,090.96, 130,624.16 and 27,918.96 is: 41,874.50
Step by Step Solution
- Step 1: Write the proportion equation
87,090.96 : 130,624.16 = 27,918.96 : x - Step 2: Convert to fraction form
87,090.96/130,624.16 = 27,918.96/x - Step 3: Cross multiply
87,090.96x = 130,624.16 × 27,918.96 - Step 4: Simplify right side
87,090.96x = 3,646,890,698.07 - Step 5: Solve for x
x = 3,646,890,698.07/87,090.96 - Step 6: Final answer
x = 41,874.50
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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.