Finding the Fourth Proportional to 98,115.68, 135,395.88 and 55,671.68
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Solution
The fourth proportional to 98,115.68, 135,395.88 and 55,671.68 is: 76,824.79
Step by Step Solution
- Step 1: Write the proportion equation
98,115.68 : 135,395.88 = 55,671.68 : x - Step 2: Convert to fraction form
98,115.68/135,395.88 = 55,671.68/x - Step 3: Cross multiply
98,115.68x = 135,395.88 × 55,671.68 - Step 4: Simplify right side
98,115.68x = 7,537,716,104.68 - Step 5: Solve for x
x = 7,537,716,104.68/98,115.68 - Step 6: Final answer
x = 76,824.79
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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.