Finding the Fourth Proportional to 86,945.42, 130,329.90 and 49,427.99
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Solution
The fourth proportional to 86,945.42, 130,329.90 and 49,427.99 is: 74,091.83
Step by Step Solution
- Step 1: Write the proportion equation
86,945.42 : 130,329.90 = 49,427.99 : x - Step 2: Convert to fraction form
86,945.42/130,329.90 = 49,427.99/x - Step 3: Cross multiply
86,945.42x = 130,329.90 × 49,427.99 - Step 4: Simplify right side
86,945.42x = 6,441,944,993.90 - Step 5: Solve for x
x = 6,441,944,993.90/86,945.42 - Step 6: Final answer
x = 74,091.83
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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.