Finding the Fourth Proportional to 91,480.96, 137,221.12 and 60,089.12
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Solution
The fourth proportional to 91,480.96, 137,221.12 and 60,089.12 is: 90,133.47
Step by Step Solution
- Step 1: Write the proportion equation
91,480.96 : 137,221.12 = 60,089.12 : x - Step 2: Convert to fraction form
91,480.96/137,221.12 = 60,089.12/x - Step 3: Cross multiply
91,480.96x = 137,221.12 × 60,089.12 - Step 4: Simplify right side
91,480.96x = 8,245,496,346.21 - Step 5: Solve for x
x = 8,245,496,346.21/91,480.96 - Step 6: Final answer
x = 90,133.47
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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.