Finding the Fourth Proportional to 91,449.75, 137,054.34 and 38,794.08
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Solution
The fourth proportional to 91,449.75, 137,054.34 and 38,794.08 is: 58,140.09
Step by Step Solution
- Step 1: Write the proportion equation
91,449.75 : 137,054.34 = 38,794.08 : x - Step 2: Convert to fraction form
91,449.75/137,054.34 = 38,794.08/x - Step 3: Cross multiply
91,449.75x = 137,054.34 × 38,794.08 - Step 4: Simplify right side
91,449.75x = 5,316,897,030.31 - Step 5: Solve for x
x = 5,316,897,030.31/91,449.75 - Step 6: Final answer
x = 58,140.09
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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.