Finding the Fourth Proportional to 84,490.80, 126,729.60 and 22,159.68
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Solution
The fourth proportional to 84,490.80, 126,729.60 and 22,159.68 is: 33,237.79
Step by Step Solution
- Step 1: Write the proportion equation
84,490.80 : 126,729.60 = 22,159.68 : x - Step 2: Convert to fraction form
84,490.80/126,729.60 = 22,159.68/x - Step 3: Cross multiply
84,490.80x = 126,729.60 × 22,159.68 - Step 4: Simplify right side
84,490.80x = 2,808,287,382.53 - Step 5: Solve for x
x = 2,808,287,382.53/84,490.80 - Step 6: Final answer
x = 33,237.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.