Finding the Fourth Proportional to 80,003.10, 110,321.58 and 68,709.99
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Solution
The fourth proportional to 80,003.10, 110,321.58 and 68,709.99 is: 94,748.76
Step by Step Solution
- Step 1: Write the proportion equation
80,003.10 : 110,321.58 = 68,709.99 : x - Step 2: Convert to fraction form
80,003.10/110,321.58 = 68,709.99/x - Step 3: Cross multiply
80,003.10x = 110,321.58 × 68,709.99 - Step 4: Simplify right side
80,003.10x = 7,580,194,658.58 - Step 5: Solve for x
x = 7,580,194,658.58/80,003.10 - Step 6: Final answer
x = 94,748.76
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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.