Finding the Fourth Proportional to 76,589.56, 105,686.62 and 44,318.60
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Solution
The fourth proportional to 76,589.56, 105,686.62 and 44,318.60 is: 61,155.63
Step by Step Solution
- Step 1: Write the proportion equation
76,589.56 : 105,686.62 = 44,318.60 : x - Step 2: Convert to fraction form
76,589.56/105,686.62 = 44,318.60/x - Step 3: Cross multiply
76,589.56x = 105,686.62 × 44,318.60 - Step 4: Simplify right side
76,589.56x = 4,683,883,037.13 - Step 5: Solve for x
x = 4,683,883,037.13/76,589.56 - Step 6: Final answer
x = 61,155.63
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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.