Finding the Fourth Proportional to 90,464.44, 135,678.18 and 34,285.18
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Solution
The fourth proportional to 90,464.44, 135,678.18 and 34,285.18 is: 51,420.77
Step by Step Solution
- Step 1: Write the proportion equation
90,464.44 : 135,678.18 = 34,285.18 : x - Step 2: Convert to fraction form
90,464.44/135,678.18 = 34,285.18/x - Step 3: Cross multiply
90,464.44x = 135,678.18 × 34,285.18 - Step 4: Simplify right side
90,464.44x = 4,651,750,823.37 - Step 5: Solve for x
x = 4,651,750,823.37/90,464.44 - Step 6: Final answer
x = 51,420.77
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1.5x scale
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.