Finding the Fourth Proportional to 84,960.08, 126,723.16 and 73,778.84
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Solution
The fourth proportional to 84,960.08, 126,723.16 and 73,778.84 is: 110,045.66
Step by Step Solution
- Step 1: Write the proportion equation
84,960.08 : 126,723.16 = 73,778.84 : x - Step 2: Convert to fraction form
84,960.08/126,723.16 = 73,778.84/x - Step 3: Cross multiply
84,960.08x = 126,723.16 × 73,778.84 - Step 4: Simplify right side
84,960.08x = 9,349,487,745.93 - Step 5: Solve for x
x = 9,349,487,745.93/84,960.08 - Step 6: Final answer
x = 110,045.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.