Finding the Fourth Proportional to 84,615.36, 126,881.44 and 34,681.84
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Solution
The fourth proportional to 84,615.36, 126,881.44 and 34,681.84 is: 52,005.71
Step by Step Solution
- Step 1: Write the proportion equation
84,615.36 : 126,881.44 = 34,681.84 : x - Step 2: Convert to fraction form
84,615.36/126,881.44 = 34,681.84/x - Step 3: Cross multiply
84,615.36x = 126,881.44 × 34,681.84 - Step 4: Simplify right side
84,615.36x = 4,400,481,801.05 - Step 5: Solve for x
x = 4,400,481,801.05/84,615.36 - Step 6: Final answer
x = 52,005.71
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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.