Finding the Fourth Proportional to 66,866.79, 100,389.27 and 38,806.99
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Solution
The fourth proportional to 66,866.79, 100,389.27 and 38,806.99 is: 58,262.19
Step by Step Solution
- Step 1: Write the proportion equation
66,866.79 : 100,389.27 = 38,806.99 : x - Step 2: Convert to fraction form
66,866.79/100,389.27 = 38,806.99/x - Step 3: Cross multiply
66,866.79x = 100,389.27 × 38,806.99 - Step 4: Simplify right side
66,866.79x = 3,895,805,397.00 - Step 5: Solve for x
x = 3,895,805,397.00/66,866.79 - Step 6: Final answer
x = 58,262.19
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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.