Finding the Fourth Proportional to 77,813.74, 107,371.11 and 43,820.44
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Solution
The fourth proportional to 77,813.74, 107,371.11 and 43,820.44 is: 60,465.53
Step by Step Solution
- Step 1: Write the proportion equation
77,813.74 : 107,371.11 = 43,820.44 : x - Step 2: Convert to fraction form
77,813.74/107,371.11 = 43,820.44/x - Step 3: Cross multiply
77,813.74x = 107,371.11 × 43,820.44 - Step 4: Simplify right side
77,813.74x = 4,705,049,283.49 - Step 5: Solve for x
x = 4,705,049,283.49/77,813.74 - Step 6: Final answer
x = 60,465.53
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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.