Finding the Fourth Proportional to 91,069.51, 136,571.44 and 38,483.09
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Solution
The fourth proportional to 91,069.51, 136,571.44 and 38,483.09 is: 57,710.76
Step by Step Solution
- Step 1: Write the proportion equation
91,069.51 : 136,571.44 = 38,483.09 : x - Step 2: Convert to fraction form
91,069.51/136,571.44 = 38,483.09/x - Step 3: Cross multiply
91,069.51x = 136,571.44 × 38,483.09 - Step 4: Simplify right side
91,069.51x = 5,255,691,016.95 - Step 5: Solve for x
x = 5,255,691,016.95/91,069.51 - Step 6: Final answer
x = 57,710.76
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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.