Finding the Fourth Proportional to 88,199.02, 121,715.49 and 47,913.09
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Solution
The fourth proportional to 88,199.02, 121,715.49 and 47,913.09 is: 66,120.51
Step by Step Solution
- Step 1: Write the proportion equation
88,199.02 : 121,715.49 = 47,913.09 : x - Step 2: Convert to fraction form
88,199.02/121,715.49 = 47,913.09/x - Step 3: Cross multiply
88,199.02x = 121,715.49 × 47,913.09 - Step 4: Simplify right side
88,199.02x = 5,831,764,618.19 - Step 5: Solve for x
x = 5,831,764,618.19/88,199.02 - Step 6: Final answer
x = 66,120.51
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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.