Finding the Fourth Proportional to 85,317.70, 128,001.14 and 26,162.09
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Solution
The fourth proportional to 85,317.70, 128,001.14 and 26,162.09 is: 39,250.68
Step by Step Solution
- Step 1: Write the proportion equation
85,317.70 : 128,001.14 = 26,162.09 : x - Step 2: Convert to fraction form
85,317.70/128,001.14 = 26,162.09/x - Step 3: Cross multiply
85,317.70x = 128,001.14 × 26,162.09 - Step 4: Simplify right side
85,317.70x = 3,348,777,344.78 - Step 5: Solve for x
x = 3,348,777,344.78/85,317.70 - Step 6: Final answer
x = 39,250.68
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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.