Finding the Fourth Proportional to 88,209.36, 121,734.36 and 50,482.80
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Solution
The fourth proportional to 88,209.36, 121,734.36 and 50,482.80 is: 69,669.38
Step by Step Solution
- Step 1: Write the proportion equation
88,209.36 : 121,734.36 = 50,482.80 : x - Step 2: Convert to fraction form
88,209.36/121,734.36 = 50,482.80/x - Step 3: Cross multiply
88,209.36x = 121,734.36 × 50,482.80 - Step 4: Simplify right side
88,209.36x = 6,145,491,349.01 - Step 5: Solve for x
x = 6,145,491,349.01/88,209.36 - Step 6: Final answer
x = 69,669.38
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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.