Finding the Fourth Proportional to 89,724.26, 134,587.48 and 38,426.02
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Solution
The fourth proportional to 89,724.26, 134,587.48 and 38,426.02 is: 57,639.50
Step by Step Solution
- Step 1: Write the proportion equation
89,724.26 : 134,587.48 = 38,426.02 : x - Step 2: Convert to fraction form
89,724.26/134,587.48 = 38,426.02/x - Step 3: Cross multiply
89,724.26x = 134,587.48 × 38,426.02 - Step 4: Simplify right side
89,724.26x = 5,171,661,198.23 - Step 5: Solve for x
x = 5,171,661,198.23/89,724.26 - Step 6: Final answer
x = 57,639.50
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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.