Finding the Fourth Proportional to 74,899.62, 103,362.27 and 40,909.08
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Solution
The fourth proportional to 74,899.62, 103,362.27 and 40,909.08 is: 56,454.96
Step by Step Solution
- Step 1: Write the proportion equation
74,899.62 : 103,362.27 = 40,909.08 : x - Step 2: Convert to fraction form
74,899.62/103,362.27 = 40,909.08/x - Step 3: Cross multiply
74,899.62x = 103,362.27 × 40,909.08 - Step 4: Simplify right side
74,899.62x = 4,228,455,372.41 - Step 5: Solve for x
x = 4,228,455,372.41/74,899.62 - Step 6: Final answer
x = 56,454.96
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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.