Finding the Fourth Proportional to 87,775.79, 131,556.35 and 37,750.19
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Solution
The fourth proportional to 87,775.79, 131,556.35 and 37,750.19 is: 56,579.12
Step by Step Solution
- Step 1: Write the proportion equation
87,775.79 : 131,556.35 = 37,750.19 : x - Step 2: Convert to fraction form
87,775.79/131,556.35 = 37,750.19/x - Step 3: Cross multiply
87,775.79x = 131,556.35 × 37,750.19 - Step 4: Simplify right side
87,775.79x = 4,966,276,644.80 - Step 5: Solve for x
x = 4,966,276,644.80/87,775.79 - Step 6: Final answer
x = 56,579.12
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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.