Finding the Fourth Proportional to 97,674.24, 134,781.12 and 77,579.76
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Solution
The fourth proportional to 97,674.24, 134,781.12 and 77,579.76 is: 107,052.66
Step by Step Solution
- Step 1: Write the proportion equation
97,674.24 : 134,781.12 = 77,579.76 : x - Step 2: Convert to fraction form
97,674.24/134,781.12 = 77,579.76/x - Step 3: Cross multiply
97,674.24x = 134,781.12 × 77,579.76 - Step 4: Simplify right side
97,674.24x = 10,456,286,942.13 - Step 5: Solve for x
x = 10,456,286,942.13/97,674.24 - Step 6: Final answer
x = 107,052.66
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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.