Finding the Fourth Proportional to 74,703.14, 103,088.99 and 40,711.42
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Solution
The fourth proportional to 74,703.14, 103,088.99 and 40,711.42 is: 56,181.03
Step by Step Solution
- Step 1: Write the proportion equation
74,703.14 : 103,088.99 = 40,711.42 : x - Step 2: Convert to fraction form
74,703.14/103,088.99 = 40,711.42/x - Step 3: Cross multiply
74,703.14x = 103,088.99 × 40,711.42 - Step 4: Simplify right side
74,703.14x = 4,196,899,013.32 - Step 5: Solve for x
x = 4,196,899,013.32/74,703.14 - Step 6: Final answer
x = 56,181.03
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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.