Finding the Fourth Proportional to 83,869.63, 125,743.39 and 39,471.71
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Solution
The fourth proportional to 83,869.63, 125,743.39 and 39,471.71 is: 59,178.82
Step by Step Solution
- Step 1: Write the proportion equation
83,869.63 : 125,743.39 = 39,471.71 : x - Step 2: Convert to fraction form
83,869.63/125,743.39 = 39,471.71/x - Step 3: Cross multiply
83,869.63x = 125,743.39 × 39,471.71 - Step 4: Simplify right side
83,869.63x = 4,963,305,897.10 - Step 5: Solve for x
x = 4,963,305,897.10/83,869.63 - Step 6: Final answer
x = 59,178.82
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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.