Finding the Fourth Proportional to 74,059.72, 102,202.36 and 40,068.23
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Solution
The fourth proportional to 74,059.72, 102,202.36 and 40,068.23 is: 55,294.12
Step by Step Solution
- Step 1: Write the proportion equation
74,059.72 : 102,202.36 = 40,068.23 : x - Step 2: Convert to fraction form
74,059.72/102,202.36 = 40,068.23/x - Step 3: Cross multiply
74,059.72x = 102,202.36 × 40,068.23 - Step 4: Simplify right side
74,059.72x = 4,095,067,281.22 - Step 5: Solve for x
x = 4,095,067,281.22/74,059.72 - Step 6: Final answer
x = 55,294.12
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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.