Finding the Fourth Proportional to 77,701.15, 107,237.09 and 43,711.08
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Solution
The fourth proportional to 77,701.15, 107,237.09 and 43,711.08 is: 60,326.64
Step by Step Solution
- Step 1: Write the proportion equation
77,701.15 : 107,237.09 = 43,711.08 : x - Step 2: Convert to fraction form
77,701.15/107,237.09 = 43,711.08/x - Step 3: Cross multiply
77,701.15x = 107,237.09 × 43,711.08 - Step 4: Simplify right side
77,701.15x = 4,687,449,019.96 - Step 5: Solve for x
x = 4,687,449,019.96/77,701.15 - Step 6: Final answer
x = 60,326.64
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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.