Finding the Fourth Proportional to 81,239.90, 112,110.21 and 44,942.99
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Solution
The fourth proportional to 81,239.90, 112,110.21 and 44,942.99 is: 62,020.85
Step by Step Solution
- Step 1: Write the proportion equation
81,239.90 : 112,110.21 = 44,942.99 : x - Step 2: Convert to fraction form
81,239.90/112,110.21 = 44,942.99/x - Step 3: Cross multiply
81,239.90x = 112,110.21 × 44,942.99 - Step 4: Simplify right side
81,239.90x = 5,038,567,486.38 - Step 5: Solve for x
x = 5,038,567,486.38/81,239.90 - Step 6: Final answer
x = 62,020.85
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1.5x scale
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.