Finding the Fourth Proportional to 84,045.69, 115,984.80 and 48,232.80
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Solution
The fourth proportional to 84,045.69, 115,984.80 and 48,232.80 is: 66,562.27
Step by Step Solution
- Step 1: Write the proportion equation
84,045.69 : 115,984.80 = 48,232.80 : x - Step 2: Convert to fraction form
84,045.69/115,984.80 = 48,232.80/x - Step 3: Cross multiply
84,045.69x = 115,984.80 × 48,232.80 - Step 4: Simplify right side
84,045.69x = 5,594,271,661.44 - Step 5: Solve for x
x = 5,594,271,661.44/84,045.69 - Step 6: Final answer
x = 66,562.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.