Finding the Fourth Proportional to 84,355.02, 126,551.36 and 31,764.96
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Solution
The fourth proportional to 84,355.02, 126,551.36 and 31,764.96 is: 47,654.53
Step by Step Solution
- Step 1: Write the proportion equation
84,355.02 : 126,551.36 = 31,764.96 : x - Step 2: Convert to fraction form
84,355.02/126,551.36 = 31,764.96/x - Step 3: Cross multiply
84,355.02x = 126,551.36 × 31,764.96 - Step 4: Simplify right side
84,355.02x = 4,019,898,967.76 - Step 5: Solve for x
x = 4,019,898,967.76/84,355.02 - Step 6: Final answer
x = 47,654.53
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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.