Finding the Fourth Proportional to 84,272.71, 126,360.16 and 39,899.09
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Solution
The fourth proportional to 84,272.71, 126,360.16 and 39,899.09 is: 59,825.48
Step by Step Solution
- Step 1: Write the proportion equation
84,272.71 : 126,360.16 = 39,899.09 : x - Step 2: Convert to fraction form
84,272.71/126,360.16 = 39,899.09/x - Step 3: Cross multiply
84,272.71x = 126,360.16 × 39,899.09 - Step 4: Simplify right side
84,272.71x = 5,041,655,196.76 - Step 5: Solve for x
x = 5,041,655,196.76/84,272.71 - Step 6: Final answer
x = 59,825.48
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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.