Finding the Fourth Proportional to 86,889.90, 119,902.26 and 48,642.99
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Solution
The fourth proportional to 86,889.90, 119,902.26 and 48,642.99 is: 67,124.08
Step by Step Solution
- Step 1: Write the proportion equation
86,889.90 : 119,902.26 = 48,642.99 : x - Step 2: Convert to fraction form
86,889.90/119,902.26 = 48,642.99/x - Step 3: Cross multiply
86,889.90x = 119,902.26 × 48,642.99 - Step 4: Simplify right side
86,889.90x = 5,832,404,434.16 - Step 5: Solve for x
x = 5,832,404,434.16/86,889.90 - Step 6: Final answer
x = 67,124.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.