Finding the Fourth Proportional to 80,866.02, 121,234.23 and 54,239.70
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Solution
The fourth proportional to 80,866.02, 121,234.23 and 54,239.70 is: 81,316.09
Step by Step Solution
- Step 1: Write the proportion equation
80,866.02 : 121,234.23 = 54,239.70 : x - Step 2: Convert to fraction form
80,866.02/121,234.23 = 54,239.70/x - Step 3: Cross multiply
80,866.02x = 121,234.23 × 54,239.70 - Step 4: Simplify right side
80,866.02x = 6,575,708,264.93 - Step 5: Solve for x
x = 6,575,708,264.93/80,866.02 - Step 6: Final answer
x = 81,316.09
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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.