Finding the Fourth Proportional to 84,170.64, 126,135.66 and 61,808.58
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Solution
The fourth proportional to 84,170.64, 126,135.66 and 61,808.58 is: 92,624.53
Step by Step Solution
- Step 1: Write the proportion equation
84,170.64 : 126,135.66 = 61,808.58 : x - Step 2: Convert to fraction form
84,170.64/126,135.66 = 61,808.58/x - Step 3: Cross multiply
84,170.64x = 126,135.66 × 61,808.58 - Step 4: Simplify right side
84,170.64x = 7,796,266,031.96 - Step 5: Solve for x
x = 7,796,266,031.96/84,170.64 - Step 6: Final answer
x = 92,624.53
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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.