Finding the Fourth Proportional to 84,388.68, 126,508.52 and 31,835.07
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Solution
The fourth proportional to 84,388.68, 126,508.52 and 31,835.07 is: 47,724.49
Step by Step Solution
- Step 1: Write the proportion equation
84,388.68 : 126,508.52 = 31,835.07 : x - Step 2: Convert to fraction form
84,388.68/126,508.52 = 31,835.07/x - Step 3: Cross multiply
84,388.68x = 126,508.52 × 31,835.07 - Step 4: Simplify right side
84,388.68x = 4,027,406,798.08 - Step 5: Solve for x
x = 4,027,406,798.08/84,388.68 - Step 6: Final answer
x = 47,724.49
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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.