Finding the Fourth Proportional to 103,686.70, 155,554.71 and 33,565.99
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Solution
The fourth proportional to 103,686.70, 155,554.71 and 33,565.99 is: 50,356.97
Step by Step Solution
- Step 1: Write the proportion equation
103,686.70 : 155,554.71 = 33,565.99 : x - Step 2: Convert to fraction form
103,686.70/155,554.71 = 33,565.99/x - Step 3: Cross multiply
103,686.70x = 155,554.71 × 33,565.99 - Step 4: Simplify right side
103,686.70x = 5,221,347,840.31 - Step 5: Solve for x
x = 5,221,347,840.31/103,686.70 - Step 6: Final answer
x = 50,356.97
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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.