Finding the Fourth Proportional to 92,847.92, 128,130.66 and 54,609.08
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Solution
The fourth proportional to 92,847.92, 128,130.66 and 54,609.08 is: 75,360.84
Step by Step Solution
- Step 1: Write the proportion equation
92,847.92 : 128,130.66 = 54,609.08 : x - Step 2: Convert to fraction form
92,847.92/128,130.66 = 54,609.08/x - Step 3: Cross multiply
92,847.92x = 128,130.66 × 54,609.08 - Step 4: Simplify right side
92,847.92x = 6,997,096,821.74 - Step 5: Solve for x
x = 6,997,096,821.74/92,847.92 - Step 6: Final answer
x = 75,360.84
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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.