Finding the Fourth Proportional to 92,800.13, 128,066.64 and 50,358.68
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Solution
The fourth proportional to 92,800.13, 128,066.64 and 50,358.68 is: 69,496.31
Step by Step Solution
- Step 1: Write the proportion equation
92,800.13 : 128,066.64 = 50,358.68 : x - Step 2: Convert to fraction form
92,800.13/128,066.64 = 50,358.68/x - Step 3: Cross multiply
92,800.13x = 128,066.64 × 50,358.68 - Step 4: Simplify right side
92,800.13x = 6,449,266,942.44 - Step 5: Solve for x
x = 6,449,266,942.44/92,800.13 - Step 6: Final answer
x = 69,496.31
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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.