Finding the Fourth Proportional to 74,551.68, 102,913.60 and 53,294.08
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Solution
The fourth proportional to 74,551.68, 102,913.60 and 53,294.08 is: 73,568.91
Step by Step Solution
- Step 1: Write the proportion equation
74,551.68 : 102,913.60 = 53,294.08 : x - Step 2: Convert to fraction form
74,551.68/102,913.60 = 53,294.08/x - Step 3: Cross multiply
74,551.68x = 102,913.60 × 53,294.08 - Step 4: Simplify right side
74,551.68x = 5,484,685,631.49 - Step 5: Solve for x
x = 5,484,685,631.49/74,551.68 - Step 6: Final answer
x = 73,568.91
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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.