Finding the Fourth Proportional to 87,351.80, 131,027.70 and 59,703.80
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Solution
The fourth proportional to 87,351.80, 131,027.70 and 59,703.80 is: 89,555.70
Step by Step Solution
- Step 1: Write the proportion equation
87,351.80 : 131,027.70 = 59,703.80 : x - Step 2: Convert to fraction form
87,351.80/131,027.70 = 59,703.80/x - Step 3: Cross multiply
87,351.80x = 131,027.70 × 59,703.80 - Step 4: Simplify right side
87,351.80x = 7,822,851,595.26 - Step 5: Solve for x
x = 7,822,851,595.26/87,351.80 - Step 6: Final answer
x = 89,555.70
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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.