Finding the Fourth Proportional to 91,237.63, 136,930.16 and 38,684.02
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Solution
The fourth proportional to 91,237.63, 136,930.16 and 38,684.02 is: 58,057.28
Step by Step Solution
- Step 1: Write the proportion equation
91,237.63 : 136,930.16 = 38,684.02 : x - Step 2: Convert to fraction form
91,237.63/136,930.16 = 38,684.02/x - Step 3: Cross multiply
91,237.63x = 136,930.16 × 38,684.02 - Step 4: Simplify right side
91,237.63x = 5,297,008,169.97 - Step 5: Solve for x
x = 5,297,008,169.97/91,237.63 - Step 6: Final answer
x = 58,057.28
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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.