Finding the Fourth Proportional to 80,809.48, 121,175.34 and 34,036.84
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Solution
The fourth proportional to 80,809.48, 121,175.34 and 34,036.84 is: 51,038.88
Step by Step Solution
- Step 1: Write the proportion equation
80,809.48 : 121,175.34 = 34,036.84 : x - Step 2: Convert to fraction form
80,809.48/121,175.34 = 34,036.84/x - Step 3: Cross multiply
80,809.48x = 121,175.34 × 34,036.84 - Step 4: Simplify right side
80,809.48x = 4,124,425,659.53 - Step 5: Solve for x
x = 4,124,425,659.53/80,809.48 - Step 6: Final answer
x = 51,038.88
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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.