Finding the Fourth Proportional to 88,191.41, 121,657.50 and 55,869.02
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Solution
The fourth proportional to 88,191.41, 121,657.50 and 55,869.02 is: 77,069.69
Step by Step Solution
- Step 1: Write the proportion equation
88,191.41 : 121,657.50 = 55,869.02 : x - Step 2: Convert to fraction form
88,191.41/121,657.50 = 55,869.02/x - Step 3: Cross multiply
88,191.41x = 121,657.50 × 55,869.02 - Step 4: Simplify right side
88,191.41x = 6,796,884,692.36 - Step 5: Solve for x
x = 6,796,884,692.36/88,191.41 - Step 6: Final answer
x = 77,069.69
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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.