Finding the Fourth Proportional to 83,889.09, 125,833.50 and 57,513.87
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Solution
The fourth proportional to 83,889.09, 125,833.50 and 57,513.87 is: 86,270.71
Step by Step Solution
- Step 1: Write the proportion equation
83,889.09 : 125,833.50 = 57,513.87 : x - Step 2: Convert to fraction form
83,889.09/125,833.50 = 57,513.87/x - Step 3: Cross multiply
83,889.09x = 125,833.50 × 57,513.87 - Step 4: Simplify right side
83,889.09x = 7,237,171,560.65 - Step 5: Solve for x
x = 7,237,171,560.65/83,889.09 - Step 6: Final answer
x = 86,270.71
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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.