Finding the Fourth Proportional to 88,338.09, 121,909.82 and 50,619.63
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Solution
The fourth proportional to 88,338.09, 121,909.82 and 50,619.63 is: 69,856.95
Step by Step Solution
- Step 1: Write the proportion equation
88,338.09 : 121,909.82 = 50,619.63 : x - Step 2: Convert to fraction form
88,338.09/121,909.82 = 50,619.63/x - Step 3: Cross multiply
88,338.09x = 121,909.82 × 50,619.63 - Step 4: Simplify right side
88,338.09x = 6,171,029,728.67 - Step 5: Solve for x
x = 6,171,029,728.67/88,338.09 - Step 6: Final answer
x = 69,856.95
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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.