Finding the Fourth Proportional to 86,939.68, 130,432.80 and 37,022.08
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Solution
The fourth proportional to 86,939.68, 130,432.80 and 37,022.08 is: 55,543.03
Step by Step Solution
- Step 1: Write the proportion equation
86,939.68 : 130,432.80 = 37,022.08 : x - Step 2: Convert to fraction form
86,939.68/130,432.80 = 37,022.08/x - Step 3: Cross multiply
86,939.68x = 130,432.80 × 37,022.08 - Step 4: Simplify right side
86,939.68x = 4,828,893,556.22 - Step 5: Solve for x
x = 4,828,893,556.22/86,939.68 - Step 6: Final answer
x = 55,543.03
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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.