Finding the Fourth Proportional to 85,315.70, 127,998.14 and 26,160.09
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Solution
The fourth proportional to 85,315.70, 127,998.14 and 26,160.09 is: 39,247.67
Step by Step Solution
- Step 1: Write the proportion equation
85,315.70 : 127,998.14 = 26,160.09 : x - Step 2: Convert to fraction form
85,315.70/127,998.14 = 26,160.09/x - Step 3: Cross multiply
85,315.70x = 127,998.14 × 26,160.09 - Step 4: Simplify right side
85,315.70x = 3,348,442,862.23 - Step 5: Solve for x
x = 3,348,442,862.23/85,315.70 - Step 6: Final answer
x = 39,247.67
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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.