Finding the Fourth Proportional to 74,886.99, 103,344.57 and 40,894.62
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Solution
The fourth proportional to 74,886.99, 103,344.57 and 40,894.62 is: 56,434.86
Step by Step Solution
- Step 1: Write the proportion equation
74,886.99 : 103,344.57 = 40,894.62 : x - Step 2: Convert to fraction form
74,886.99/103,344.57 = 40,894.62/x - Step 3: Cross multiply
74,886.99x = 103,344.57 × 40,894.62 - Step 4: Simplify right side
74,886.99x = 4,226,236,919.21 - Step 5: Solve for x
x = 4,226,236,919.21/74,886.99 - Step 6: Final answer
x = 56,434.86
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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.