Finding the Fourth Proportional to 84,684.21, 127,026.36 and 21,509.07
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Solution
The fourth proportional to 84,684.21, 127,026.36 and 21,509.07 is: 32,263.62
Step by Step Solution
- Step 1: Write the proportion equation
84,684.21 : 127,026.36 = 21,509.07 : x - Step 2: Convert to fraction form
84,684.21/127,026.36 = 21,509.07/x - Step 3: Cross multiply
84,684.21x = 127,026.36 × 21,509.07 - Step 4: Simplify right side
84,684.21x = 2,732,218,869.09 - Step 5: Solve for x
x = 2,732,218,869.09/84,684.21 - Step 6: Final answer
x = 32,263.62
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1.5x scale
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.