Finding the Fourth Proportional to 93,453.15, 128,960.84 and 53,163.12
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Solution
The fourth proportional to 93,453.15, 128,960.84 and 53,163.12 is: 73,362.54
Step by Step Solution
- Step 1: Write the proportion equation
93,453.15 : 128,960.84 = 53,163.12 : x - Step 2: Convert to fraction form
93,453.15/128,960.84 = 53,163.12/x - Step 3: Cross multiply
93,453.15x = 128,960.84 × 53,163.12 - Step 4: Simplify right side
93,453.15x = 6,855,960,745.13 - Step 5: Solve for x
x = 6,855,960,745.13/93,453.15 - Step 6: Final answer
x = 73,362.54
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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.