Finding the Fourth Proportional to 77,189.10, 115,699.19 and 39,751.44
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Solution
The fourth proportional to 77,189.10, 115,699.19 and 39,751.44 is: 59,583.66
Step by Step Solution
- Step 1: Write the proportion equation
77,189.10 : 115,699.19 = 39,751.44 : x - Step 2: Convert to fraction form
77,189.10/115,699.19 = 39,751.44/x - Step 3: Cross multiply
77,189.10x = 115,699.19 × 39,751.44 - Step 4: Simplify right side
77,189.10x = 4,599,209,210.58 - Step 5: Solve for x
x = 4,599,209,210.58/77,189.10 - Step 6: Final answer
x = 59,583.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.