Finding the Fourth Proportional to 97,899.77, 135,104.42 and 55,458.29
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Solution
The fourth proportional to 97,899.77, 135,104.42 and 55,458.29 is: 76,533.99
Step by Step Solution
- Step 1: Write the proportion equation
97,899.77 : 135,104.42 = 55,458.29 : x - Step 2: Convert to fraction form
97,899.77/135,104.42 = 55,458.29/x - Step 3: Cross multiply
97,899.77x = 135,104.42 × 55,458.29 - Step 4: Simplify right side
97,899.77x = 7,492,660,581.05 - Step 5: Solve for x
x = 7,492,660,581.05/97,899.77 - Step 6: Final answer
x = 76,533.99
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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.