Finding the Fourth Proportional to 75,072.64, 103,618.73 and 44,875.87
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Solution
The fourth proportional to 75,072.64, 103,618.73 and 44,875.87 is: 61,939.75
Step by Step Solution
- Step 1: Write the proportion equation
75,072.64 : 103,618.73 = 44,875.87 : x - Step 2: Convert to fraction form
75,072.64/103,618.73 = 44,875.87/x - Step 3: Cross multiply
75,072.64x = 103,618.73 × 44,875.87 - Step 4: Simplify right side
75,072.64x = 4,649,980,657.05 - Step 5: Solve for x
x = 4,649,980,657.05/75,072.64 - Step 6: Final answer
x = 61,939.75
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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.