Finding the Fourth Proportional to 74,924.40, 103,390.68 and 41,389.68
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Solution
The fourth proportional to 74,924.40, 103,390.68 and 41,389.68 is: 57,115.00
Step by Step Solution
- Step 1: Write the proportion equation
74,924.40 : 103,390.68 = 41,389.68 : x - Step 2: Convert to fraction form
74,924.40/103,390.68 = 41,389.68/x - Step 3: Cross multiply
74,924.40x = 103,390.68 × 41,389.68 - Step 4: Simplify right side
74,924.40x = 4,279,307,160.18 - Step 5: Solve for x
x = 4,279,307,160.18/74,924.40 - Step 6: Final answer
x = 57,115.00
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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.