Finding the Fourth Proportional to 84,204.58, 126,292.51 and 28,038.31
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Solution
The fourth proportional to 84,204.58, 126,292.51 and 28,038.31 is: 42,052.68
Step by Step Solution
- Step 1: Write the proportion equation
84,204.58 : 126,292.51 = 28,038.31 : x - Step 2: Convert to fraction form
84,204.58/126,292.51 = 28,038.31/x - Step 3: Cross multiply
84,204.58x = 126,292.51 × 28,038.31 - Step 4: Simplify right side
84,204.58x = 3,541,028,405.87 - Step 5: Solve for x
x = 3,541,028,405.87/84,204.58 - Step 6: Final answer
x = 42,052.68
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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.