Finding the Fourth Proportional to 84,209.36, 126,203.32 and 39,848.81
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Solution
The fourth proportional to 84,209.36, 126,203.32 and 39,848.81 is: 59,720.82
Step by Step Solution
- Step 1: Write the proportion equation
84,209.36 : 126,203.32 = 39,848.81 : x - Step 2: Convert to fraction form
84,209.36/126,203.32 = 39,848.81/x - Step 3: Cross multiply
84,209.36x = 126,203.32 × 39,848.81 - Step 4: Simplify right side
84,209.36x = 5,029,051,920.81 - Step 5: Solve for x
x = 5,029,051,920.81/84,209.36 - Step 6: Final answer
x = 59,720.82
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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.