Finding the Fourth Proportional to 84,108.36, 125,981.63 and 39,668.52
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Solution
The fourth proportional to 84,108.36, 125,981.63 and 39,668.52 is: 59,417.45
Step by Step Solution
- Step 1: Write the proportion equation
84,108.36 : 125,981.63 = 39,668.52 : x - Step 2: Convert to fraction form
84,108.36/125,981.63 = 39,668.52/x - Step 3: Cross multiply
84,108.36x = 125,981.63 × 39,668.52 - Step 4: Simplify right side
84,108.36x = 4,997,504,610.95 - Step 5: Solve for x
x = 4,997,504,610.95/84,108.36 - Step 6: Final answer
x = 59,417.45
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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.