Finding the Fourth Proportional to 78,206.04, 107,896.05 and 51,363.09
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Solution
The fourth proportional to 78,206.04, 107,896.05 and 51,363.09 is: 70,862.49
Step by Step Solution
- Step 1: Write the proportion equation
78,206.04 : 107,896.05 = 51,363.09 : x - Step 2: Convert to fraction form
78,206.04/107,896.05 = 51,363.09/x - Step 3: Cross multiply
78,206.04x = 107,896.05 × 51,363.09 - Step 4: Simplify right side
78,206.04x = 5,541,874,526.79 - Step 5: Solve for x
x = 5,541,874,526.79/78,206.04 - Step 6: Final answer
x = 70,862.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.