Finding the Fourth Proportional to 74,368.13, 102,628.01 and 40,834.13
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Solution
The fourth proportional to 74,368.13, 102,628.01 and 40,834.13 is: 56,351.09
Step by Step Solution
- Step 1: Write the proportion equation
74,368.13 : 102,628.01 = 40,834.13 : x - Step 2: Convert to fraction form
74,368.13/102,628.01 = 40,834.13/x - Step 3: Cross multiply
74,368.13x = 102,628.01 × 40,834.13 - Step 4: Simplify right side
74,368.13x = 4,190,725,090.93 - Step 5: Solve for x
x = 4,190,725,090.93/74,368.13 - Step 6: Final answer
x = 56,351.09
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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.