Finding the Fourth Proportional to 74,516.13, 102,832.20 and 40,982.13
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Solution
The fourth proportional to 74,516.13, 102,832.20 and 40,982.13 is: 56,555.31
Step by Step Solution
- Step 1: Write the proportion equation
74,516.13 : 102,832.20 = 40,982.13 : x - Step 2: Convert to fraction form
74,516.13/102,832.20 = 40,982.13/x - Step 3: Cross multiply
74,516.13x = 102,832.20 × 40,982.13 - Step 4: Simplify right side
74,516.13x = 4,214,282,588.59 - Step 5: Solve for x
x = 4,214,282,588.59/74,516.13 - Step 6: Final answer
x = 56,555.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.