Finding the Fourth Proportional to 80,777.08, 121,156.35 and 21,617.36
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Solution
The fourth proportional to 80,777.08, 121,156.35 and 21,617.36 is: 32,423.56
Step by Step Solution
- Step 1: Write the proportion equation
80,777.08 : 121,156.35 = 21,617.36 : x - Step 2: Convert to fraction form
80,777.08/121,156.35 = 21,617.36/x - Step 3: Cross multiply
80,777.08x = 121,156.35 × 21,617.36 - Step 4: Simplify right side
80,777.08x = 2,619,080,434.24 - Step 5: Solve for x
x = 2,619,080,434.24/80,777.08 - Step 6: Final answer
x = 32,423.56
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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.