Finding the Fourth Proportional to 77,091.75, 106,386.62 and 43,557.75
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Solution
The fourth proportional to 77,091.75, 106,386.62 and 43,557.75 is: 60,109.70
Step by Step Solution
- Step 1: Write the proportion equation
77,091.75 : 106,386.62 = 43,557.75 : x - Step 2: Convert to fraction form
77,091.75/106,386.62 = 43,557.75/x - Step 3: Cross multiply
77,091.75x = 106,386.62 × 43,557.75 - Step 4: Simplify right side
77,091.75x = 4,633,961,579.52 - Step 5: Solve for x
x = 4,633,961,579.52/77,091.75 - Step 6: Final answer
x = 60,109.70
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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.