Finding the Fourth Proportional to 75,013.92, 103,425.12 and 48,108.96
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Solution
The fourth proportional to 75,013.92, 103,425.12 and 48,108.96 is: 66,330.02
Step by Step Solution
- Step 1: Write the proportion equation
75,013.92 : 103,425.12 = 48,108.96 : x - Step 2: Convert to fraction form
75,013.92/103,425.12 = 48,108.96/x - Step 3: Cross multiply
75,013.92x = 103,425.12 × 48,108.96 - Step 4: Simplify right side
75,013.92x = 4,975,674,961.08 - Step 5: Solve for x
x = 4,975,674,961.08/75,013.92 - Step 6: Final answer
x = 66,330.02
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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.