Finding the Fourth Proportional to 97,400.16, 134,403.84 and 57,115.68
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Solution
The fourth proportional to 97,400.16, 134,403.84 and 57,115.68 is: 78,814.72
Step by Step Solution
- Step 1: Write the proportion equation
97,400.16 : 134,403.84 = 57,115.68 : x - Step 2: Convert to fraction form
97,400.16/134,403.84 = 57,115.68/x - Step 3: Cross multiply
97,400.16x = 134,403.84 × 57,115.68 - Step 4: Simplify right side
97,400.16x = 7,676,566,716.21 - Step 5: Solve for x
x = 7,676,566,716.21/97,400.16 - Step 6: Final answer
x = 78,814.72
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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.