Finding the Fourth Proportional to 84,004.70, 125,963.29 and 39,619.53
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Solution
The fourth proportional to 84,004.70, 125,963.29 and 39,619.53 is: 59,408.66
Step by Step Solution
- Step 1: Write the proportion equation
84,004.70 : 125,963.29 = 39,619.53 : x - Step 2: Convert to fraction form
84,004.70/125,963.29 = 39,619.53/x - Step 3: Cross multiply
84,004.70x = 125,963.29 × 39,619.53 - Step 4: Simplify right side
84,004.70x = 4,990,606,347.05 - Step 5: Solve for x
x = 4,990,606,347.05/84,004.70 - Step 6: Final answer
x = 59,408.66
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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.