Finding the Fourth Proportional to 86,423.81, 129,541.98 and 44,246.05
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Solution
The fourth proportional to 86,423.81, 129,541.98 and 44,246.05 is: 66,321.08
Step by Step Solution
- Step 1: Write the proportion equation
86,423.81 : 129,541.98 = 44,246.05 : x - Step 2: Convert to fraction form
86,423.81/129,541.98 = 44,246.05/x - Step 3: Cross multiply
86,423.81x = 129,541.98 × 44,246.05 - Step 4: Simplify right side
86,423.81x = 5,731,720,766.25 - Step 5: Solve for x
x = 5,731,720,766.25/86,423.81 - Step 6: Final answer
x = 66,321.08
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1.5x scale
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.