Finding the Fourth Proportional to 85,897.37, 128,858.21 and 26,739.02
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Solution
The fourth proportional to 85,897.37, 128,858.21 and 26,739.02 is: 40,112.31
Step by Step Solution
- Step 1: Write the proportion equation
85,897.37 : 128,858.21 = 26,739.02 : x - Step 2: Convert to fraction form
85,897.37/128,858.21 = 26,739.02/x - Step 3: Cross multiply
85,897.37x = 128,858.21 × 26,739.02 - Step 4: Simplify right side
85,897.37x = 3,445,542,254.35 - Step 5: Solve for x
x = 3,445,542,254.35/85,897.37 - Step 6: Final answer
x = 40,112.31
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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.