Finding the Fourth Proportional to 84,996.09, 127,491.53 and 21,813.66
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Solution
The fourth proportional to 84,996.09, 127,491.53 and 21,813.66 is: 32,719.82
Step by Step Solution
- Step 1: Write the proportion equation
84,996.09 : 127,491.53 = 21,813.66 : x - Step 2: Convert to fraction form
84,996.09/127,491.53 = 21,813.66/x - Step 3: Cross multiply
84,996.09x = 127,491.53 × 21,813.66 - Step 4: Simplify right side
84,996.09x = 2,781,056,779.23 - Step 5: Solve for x
x = 2,781,056,779.23/84,996.09 - Step 6: Final answer
x = 32,719.82
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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.