Finding the Fourth Proportional to 74,900.36, 103,363.28 and 40,909.83
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Solution
The fourth proportional to 74,900.36, 103,363.28 and 40,909.83 is: 56,455.99
Step by Step Solution
- Step 1: Write the proportion equation
74,900.36 : 103,363.28 = 40,909.83 : x - Step 2: Convert to fraction form
74,900.36/103,363.28 = 40,909.83/x - Step 3: Cross multiply
74,900.36x = 103,363.28 × 40,909.83 - Step 4: Simplify right side
74,900.36x = 4,228,574,213.04 - Step 5: Solve for x
x = 4,228,574,213.04/74,900.36 - Step 6: Final answer
x = 56,455.99
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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.