Finding the Fourth Proportional to 77,633.69, 107,134.62 and 43,644.08
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Solution
The fourth proportional to 77,633.69, 107,134.62 and 43,644.08 is: 60,228.90
Step by Step Solution
- Step 1: Write the proportion equation
77,633.69 : 107,134.62 = 43,644.08 : x - Step 2: Convert to fraction form
77,633.69/107,134.62 = 43,644.08/x - Step 3: Cross multiply
77,633.69x = 107,134.62 × 43,644.08 - Step 4: Simplify right side
77,633.69x = 4,675,791,926.05 - Step 5: Solve for x
x = 4,675,791,926.05/77,633.69 - Step 6: Final answer
x = 60,228.90
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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.