Finding the Fourth Proportional to 81,026.30, 121,524.06 and 34,311.98
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Solution
The fourth proportional to 81,026.30, 121,524.06 and 34,311.98 is: 51,461.45
Step by Step Solution
- Step 1: Write the proportion equation
81,026.30 : 121,524.06 = 34,311.98 : x - Step 2: Convert to fraction form
81,026.30/121,524.06 = 34,311.98/x - Step 3: Cross multiply
81,026.30x = 121,524.06 × 34,311.98 - Step 4: Simplify right side
81,026.30x = 4,169,731,116.24 - Step 5: Solve for x
x = 4,169,731,116.24/81,026.30 - Step 6: Final answer
x = 51,461.45
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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.