Finding the Fourth Proportional to 84,394.16, 126,586.68 and 42,840.08
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Solution
The fourth proportional to 84,394.16, 126,586.68 and 42,840.08 is: 64,257.81
Step by Step Solution
- Step 1: Write the proportion equation
84,394.16 : 126,586.68 = 42,840.08 : x - Step 2: Convert to fraction form
84,394.16/126,586.68 = 42,840.08/x - Step 3: Cross multiply
84,394.16x = 126,586.68 × 42,840.08 - Step 4: Simplify right side
84,394.16x = 5,422,983,498.13 - Step 5: Solve for x
x = 5,422,983,498.13/84,394.16 - Step 6: Final answer
x = 64,257.81
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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.