Finding the Fourth Proportional to 87,800.97, 121,166.10 and 51,524.13
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Solution
The fourth proportional to 87,800.97, 121,166.10 and 51,524.13 is: 71,103.75
Step by Step Solution
- Step 1: Write the proportion equation
87,800.97 : 121,166.10 = 51,524.13 : x - Step 2: Convert to fraction form
87,800.97/121,166.10 = 51,524.13/x - Step 3: Cross multiply
87,800.97x = 121,166.10 × 51,524.13 - Step 4: Simplify right side
87,800.97x = 6,242,977,887.99 - Step 5: Solve for x
x = 6,242,977,887.99/87,800.97 - Step 6: Final answer
x = 71,103.75
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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.