Finding the Fourth Proportional to 92,832.68, 128,108.99 and 50,391.21
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Solution
The fourth proportional to 92,832.68, 128,108.99 and 50,391.21 is: 69,539.82
Step by Step Solution
- Step 1: Write the proportion equation
92,832.68 : 128,108.99 = 50,391.21 : x - Step 2: Convert to fraction form
92,832.68/128,108.99 = 50,391.21/x - Step 3: Cross multiply
92,832.68x = 128,108.99 × 50,391.21 - Step 4: Simplify right side
92,832.68x = 6,455,567,624.36 - Step 5: Solve for x
x = 6,455,567,624.36/92,832.68 - Step 6: Final answer
x = 69,539.82
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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.