Finding the Fourth Proportional to 83,013.81, 124,570.13 and 30,426.99
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Solution
The fourth proportional to 83,013.81, 124,570.13 and 30,426.99 is: 45,658.60
Step by Step Solution
- Step 1: Write the proportion equation
83,013.81 : 124,570.13 = 30,426.99 : x - Step 2: Convert to fraction form
83,013.81/124,570.13 = 30,426.99/x - Step 3: Cross multiply
83,013.81x = 124,570.13 × 30,426.99 - Step 4: Simplify right side
83,013.81x = 3,790,293,947.67 - Step 5: Solve for x
x = 3,790,293,947.67/83,013.81 - Step 6: Final answer
x = 45,658.60
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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.