Finding the Fourth Proportional to 91,370.84, 137,021.70 and 38,805.08
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Solution
The fourth proportional to 91,370.84, 137,021.70 and 38,805.08 is: 58,192.94
Step by Step Solution
- Step 1: Write the proportion equation
91,370.84 : 137,021.70 = 38,805.08 : x - Step 2: Convert to fraction form
91,370.84/137,021.70 = 38,805.08/x - Step 3: Cross multiply
91,370.84x = 137,021.70 × 38,805.08 - Step 4: Simplify right side
91,370.84x = 5,317,138,030.24 - Step 5: Solve for x
x = 5,317,138,030.24/91,370.84 - Step 6: Final answer
x = 58,192.94
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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.