Finding the Fourth Proportional to 74,447.68, 102,729.18 and 42,614.68
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Solution
The fourth proportional to 74,447.68, 102,729.18 and 42,614.68 is: 58,803.33
Step by Step Solution
- Step 1: Write the proportion equation
74,447.68 : 102,729.18 = 42,614.68 : x - Step 2: Convert to fraction form
74,447.68/102,729.18 = 42,614.68/x - Step 3: Cross multiply
74,447.68x = 102,729.18 × 42,614.68 - Step 4: Simplify right side
74,447.68x = 4,377,771,132.36 - Step 5: Solve for x
x = 4,377,771,132.36/74,447.68 - Step 6: Final answer
x = 58,803.33
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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.