Finding the Fourth Proportional to 74,516.08, 102,830.10 and 40,982.08
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Solution
The fourth proportional to 74,516.08, 102,830.10 and 40,982.08 is: 56,554.12
Step by Step Solution
- Step 1: Write the proportion equation
74,516.08 : 102,830.10 = 40,982.08 : x - Step 2: Convert to fraction form
74,516.08/102,830.10 = 40,982.08/x - Step 3: Cross multiply
74,516.08x = 102,830.10 × 40,982.08 - Step 4: Simplify right side
74,516.08x = 4,214,191,384.61 - Step 5: Solve for x
x = 4,214,191,384.61/74,516.08 - Step 6: Final answer
x = 56,554.12
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1.5x scale
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.