Finding the Fourth Proportional to 77,880.12, 107,474.46 and 44,346.12
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Solution
The fourth proportional to 77,880.12, 107,474.46 and 44,346.12 is: 61,197.59
Step by Step Solution
- Step 1: Write the proportion equation
77,880.12 : 107,474.46 = 44,346.12 : x - Step 2: Convert to fraction form
77,880.12/107,474.46 = 44,346.12/x - Step 3: Cross multiply
77,880.12x = 107,474.46 × 44,346.12 - Step 4: Simplify right side
77,880.12x = 4,766,075,300.10 - Step 5: Solve for x
x = 4,766,075,300.10/77,880.12 - Step 6: Final answer
x = 61,197.59
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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.