Finding the Fourth Proportional to 77,067.68, 106,338.96 and 48,753.44
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Solution
The fourth proportional to 77,067.68, 106,338.96 and 48,753.44 is: 67,270.61
Step by Step Solution
- Step 1: Write the proportion equation
77,067.68 : 106,338.96 = 48,753.44 : x - Step 2: Convert to fraction form
77,067.68/106,338.96 = 48,753.44/x - Step 3: Cross multiply
77,067.68x = 106,338.96 × 48,753.44 - Step 4: Simplify right side
77,067.68x = 5,184,390,106.02 - Step 5: Solve for x
x = 5,184,390,106.02/77,067.68 - Step 6: Final answer
x = 67,270.61
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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.